I've spoken to people who are cheering for these kinds of effects. An actual quote: "I hope Trump does as much damage as possible." The Trump and Brexit elections were for some people a kind of Luddite revolt -- not against technology per se but against globalization. This was a revolt by the working classes of the developed world against a globalization process that is substantially impoverishing them. I can't say I…
If America was great before 1973, it certainly was only great for white men. Ask a black person just how great America was before 1973. Or a woman. Mexicans. Chinese. Native Americans. MAGA is a racist slogan that only appeals to racist whites and idiots who don't know American history.
And white men are the ones who vote. While there has been an increase in participation among all other demographics, educated white males are still the ones who drive US politics.
Percentage and numeric participation would have to increase from all other demographics to overturn that.