Pretty much this.
Trump will use Tariffs foolishly against China, many of his supporters do not realize that China does not pay these tariffs, American companies do. The price of things will gradually increase.
He will deregulate everything which will seem great at the beginning, but eventually automation will eliminate more and more blue collar jobs, corporations will use the extra money for stock buy backs and find ways to not share that wealth with employees.
He will pressure the fed to reduce interest rates within his first year in office (this is the real reason a lot of people voted for him) which will look great in the beginning. The stock market will have record performance in his first two years.
Towards the end of his term or right after he is done, the hyper inflationary effects of his policies will begin to be felt, there is a reason interest rates are the way they are, forcing the Fed to reduce them in the short term does not make these reasons magically disappear. The tariffs will contribute to hyper inflation too.
When it all comes crashing down (and it will) they will vote a democrat to fix it, and forget about their self destruction after 4 or 8 years and vote another republican, starting the process anew.
The very people complaining about "pointless wars and the economy" voted for Bush twice. that tells you all you need to know about the American electorate.
I'd add in the fact that China will send their products elsewhere. They are already building factories in Mexico and other parts of Asia. They're targeting work forces that are young and want to buy things.
By pricing affordable Chinese goods out, while letting local companies just keep putting out the same overpriced slop, they'll have trapped the American public. You'll be forced to buy phones, cars, and other products that are more expensive and not that much better than their Chinese equivalents.
Chinese companies are re investing their profits into staff retention and R&D. Our companies are reinvesting their profits into shareholders and managers. When rich people are given money, they buy luxury products and assets which appreciate in value. By making it easier for the rich to get richer, all you're doing is tanking your own economy. The stock market went crazy during covid because people used their stimulus money and rent freezes to buy things. When you give working people money, they feed the economy. They drive up demand for products and companies earn more money. When you knee cap them by not giving them jobs, good wages, unions, education or anything else that will boost their buying power, you make companies less competitive and you create a trash economy.
And by deporting literally millions of people under the age of 40 who are paying taxes, working at companies, and spending money and boosting the economy, you'll be left with an older workforce that isn't having children and whose health issues are driving up the strain on the medical system. What that means is that the spanish speakers will go to Mexico, Brazil, Canada, or any other country that will take them. They'll bring the skills they gained while in America and be care aids for old people, nurses in hospitals, construction workers, and factory workers(especially in mex). Because he's showing aggression to all non whites, that means Asians and Africans in the tech sector will get scooped up by Chinese, European and Canadian businesses. We will experience a brain drain that will make us even less competitive.