Suppose that Trump gets most of what he wants, just slower than he hoped, as SCOTUS takes time to overrule setbacks he faces in the lower courts, and as Congress enacts through legislation what he fails to achieve through Executive Orders.
* Massive cuts in federal government programs, even if a few of the initial cuts are rolled back as imprudent, will have a devastating effect on most red states, especially in the South and Appalachia. Federal aid is 50% of the government budget in West Virginia, for example. Local tax revenues won't be able to replace lost federal aid.
* Special education will basically vanish there. Schools in low income communities will be deeply starved for resources.
* More of the poor will start dying from preventable diseases in the tens of thousands a year. Infant and maternal mortality will soar. Infectious diseases will become more common. Food poisoning will again be a concern in every day life. Increased pollution, especially in low income areas, will lead to diseases associated with dirty air and dirty water.
* The elderly, the disabled, and military veterans won't be able to get by and will have to leave their homes to live with extended family, or will live far more meager lives of poverty and despair. Social security, realistically, won't vanish, but programs like social security disability will be much harder to access and benefits will probably be cut.
* Medical and scientific research will basically vanish. Federally supported financial aid (both grants and loans) with dry up, shutting working class and middle class students out of higher education to a great extent. International students will become much more scarce. The best professors and scientists, especially in fields not culturally tied to the U.S., like science and engineering and medicine, will emigrate. Their goal of making colleges and universities conservative will largely fail, notwithstanding witch hunts to try to root out liberals in academia. Red states will greatly reduce funding for their public colleges and universities and have few well-endowed private colleges and universities that will struggle to downsize as well. Blue states will pick up some of the loss of funding caused by lost federal support, but will nonetheless be seriously disrupted. And, even in blue states, all but a few of the most well-endowed colleges and universities will have a much larger share of upper middle class and rich students. Bright, academically capable, working class and middle class young adults, shut out of higher education, will turn to lower management and union leadership posts.
* Loyalty purges and cuts at the nation's military academies will within four or five years significantly reduce the quality of the U.S. military's officer corps in every single one of our military services. Impaired international trade and a declining domestic manufacturing sector and the loss of scientific and engineering talent will mean that the U.S. military pays more for less in military equipment procurement and produces less capable systems. But the U.S. retreat from a global military presence may mean that the new, less capable U.S. military won't be tested.
* Public schools across the nation will lay off teachers, and see their best and brightest and most caring teachers leave the profession.
* Mass deportations and trade friction and the loss of federal aid will cripple U.S. farmers, will probably cause more than half of U.S. farms to fail with abandoned farms dotting the landscape of every rural area in the country, and will greatly drive up the price of food while reducing its quality and variety. The same pressures will greatly shrink the construction industry. Working class men across the nation will see a dramatic surge in unemployment. Kids in high school and middle school will be pressured to work long hours in unskilled work to make up for the loss of immigrant labor, in the fields, at construction sites, and in the hospitality and food service industries.
* The U.S. manufacturing industry will crumble and the price of everything will surge.
* Reduced gun regulation and economic collapse will drive up crime rates. Drug dealing will rise as people try to cope with despair and that will also drive up crime rates because decriminalization will end and go backwards.
* Poverty rates will rise.
* LGBT folks will migrate away from red states to avoid active state sponsored persecution.
* New obstetrics and gynecology specialists will refuse to take positions in anti-abortion states, and a meaningful share of existing ones will also relocate, leading to greater maternal morality, more stillbirths, more unwanted pregnancies, and more congenital disorders in infants there. The loss of Medicaid funding will close down many rural hospitals and will hit labor and delivery wards especially hard.
* Financial and technology and manufacturing companies will relocate outside of the U.S., which will be a boon for places like the U.K., Ireland, New Zealand, Australia, and Canada, but will hurt the American economy greatly.
* Once conquered, Greenland and the Panama Canal, will see local military insurgencies emerge. An invasion of Greenland will end NATO and result in all European and Canadian military bases closing.
* Emboldened by a weak U.S., China will conquer Taiwan and make the Philippines a subject state, because the U.S. won't have the means or the will to fight China and China will have little to lose having been alienated in international trade from the U.S. China will also start supplying military equipment, supplies, and even troops to Russia, turning the tide in Russia's favor in the Ukraine War, despite vigorous and costly military aid to Ukraine from the rest of Europe.
* A complete U.S. withdrawal from Africa will give ISIS affiliated forces in Africa a modest boost.
* Canada will realign its economy to trade far less with the U.S. and far more with everyplace else, and will see a medium term boost as it absorbs high quality immigrants from the U.S.
* A major global economic recession will tank oil prices which will cause most U.S. oil producers to shut down and cause the U.S. to import far more oil which will be costly because the dollar will be much weaker.
* Disinvestment from the U.S. will drive up interest rates. This will squeeze the federal budget as the cost of interest on the national debt goes up, taking away lots of the gains from spending cuts, and combined with the blow to the construction industry, will make housing less affordable and contribute to homelessness. Migration for red states that are economically collapsing with less federal spending to blue states that were not so reliant upon federal spending, will also drive up blue state housing costs and lead to a surge in homelessness in blue states.
* Many immigrant professionals in medicine and tech will either leave positions they have filled in red states for blue state posts, or return to their homelands, leaving a shortage of skilled medical personnel and weakening the competitive edge of U.S. tech companies.
* Red states will start ignoring the establishment clause and have governments that are overtly Christian, leading non-Christians to migrate to blue states and making them even less tolerant of religious minorities.
* Smart and talented young people will move away to blue states at an even greater rate than they already do, leaving a lower quality work force in red states and undermining red state economic prosperity even further.
* Increased government corruption will strengthen a class of American oligarchs.
* New high speed rail and transit programs will end, almost everywhere.
* Tesla, with less government support, will wither and may even go out of business, with remnants acquired by its competitors.
* Carrying a passport on your person will become necessary for almost everyone, especially Hispanics and Asians.
* Museums and monuments documenting the history of anyone who isn't a white man will be looted with that part of U.S. history permanently lost to some extent, and minority and women's related and LGBT related books will be removed from public libraries in red states and will find themselves limited to private collections.
* Unemployment rates of minorities and women will be higher relative to whites and men than they have been historically.
* Suicide rates will increase greatly.
* The U.S. life expectancy will fall.
* Red state birth rates will rise by an amount that will offset rising maternal and infant and childhood mortality there, even as the raw number of births fall, as the number of women of childbearing age will fall as those women disproportionately relocate to blue states and immigrant populations fall, making it harder for young men in red states to find wives and partners. Birth rates will fall in blue states, partially made up for in absolute numbers of births by an increased number of young women in those states, but overall, U.S. birth rates will fall despite pro-natalist government incentives.
* The U.S. will experience a recession of a magnitude and duration not seen since the Great Depression.
* Unfair election reforms, both nationally and especially in red states, and targeted persecution of dissenters, will mute the extent to which increasingly unpopular sentiment towards Republicans translates into electoral results.
* Tooth decay will surge, but it will be harder to afford dental care.
* Income inequality will rise, and taxes will fall on the rich, although in blue states, this will be offset by new taxes that fall most heavily on high earners.
* More generally, "state capacity" will fall greatly across the U.S., and U.S. infrastructure, nationally, but especially in red states, will decay.
* Global warming will slow at a lower rate than it would otherwise, resulting in more climate change impacts in the U.S., especially in the South and the Southwest (which is more red than blue).
* The U.S., in general, but red states, in particular, will slip significantly towards losing developed country status and becoming a merely developing nation, in a collapse of economic progress unrivaled outside post-Soviet Russia.
* The U.S. will sink further and further down in all manner of international ratings from GDP per capita, to productivity, to democracy, to corruption, to economic growth, to human development, to life expectancy, to cost of living (which will go up), to obesity, to intergenerational economic mobility, to education, and so on. The U.S. incarceration rate and crime rate will rise again.
* Tourism to the U.S. will plummet and a U.S. passport will become less valuable as other countries impose new visa requirements on Americans.