@wdlindsy I think the question, that seems to be omitted while the answer implied, is (assuming the correlation is causal, which I do accept) "which way does the causal relationship go?"

Did we suddenly, for no clear reason, have a bunch of horrible people show up and make the world worse? Or is there a system that makes the world worse and both Trump and his supporters are caused by this system? Nothing omits the possibility of positive feedback loops, such as the violence of a police state traumatizing people into supporting authoritarianism, or lead poisoning impairing judgement such that a population makes poor decisions that increase the amount of lead in the water.

It's that question that I think we have rushed to miss, because the implications are much less convenient than blaming the current set of crises on some inherent defect in the people who created them. If we have the wrong system, then the only way we get out of this mess is by doing a ton of work to build something better... And humans tend to want to find ways to avoid doing such complicated work.