Have obstinate Trump supporters/neo-fascists been raised on lead-tainted water?
there is something going on here beyond simple human tendencies toward confirmation bias. There is this dedicated refusal to engage in honest discourse, in honest, objective, fact-based reality that is beyond anything in recent memory.
Apparently, though, this kind of behavior is very common, historically, when society is faced with actual demographic and social upheaval: Great Depression, Wars, things like this. Extreme populism and obstinate wagon-circling to defend one's personal righteousness and blame the evils of the world on "all the others." This has happened repeatedly, so it isn't new.
What is unique, here, is that it actually came about on a cascade of lies about the realities of the world we are facing--things actually aren't nearly that catastrophic for the vast majority of the country. A handful of perennial punching bags in the typical parts of the country, however, just got really angry and, somehow, managed to convince a great swatch of surban-angsty teenagers that their world is doomed if they don't elect this lying, orange, Mussolini over-boiled vegetable as their Great Leader.
Truly fascinating, how smattering of legit, under-employed blue collar folks in forgotten and under-served communities rode a wave of long-hair, over-privileged suburban basement dweller angst to the promised land of, well, far greater misery for their situation.