John: Hey, Bush is now at 37% approval. I feel much less like Kevin McCarthy screaming in traffic. But I wonder what his base is --
Tyrone: 27%.
John: ... you said that immmediately, and with some authority.
Tyrone: Obama vs. Alan Keyes. Keyes was from out of state, so you can eliminate any established political base; both candidates were black, so you can factor out racism; and Keyes was plainly, obviously, completely crazy. Batshit crazy. Head-trauma crazy. But 27% of the population of Illinois voted for him. They put party identification, personal prejudice, whatever ahead of rational judgement. Hell, even like 5% of Democrats voted for him. That's crazy behaviour. I think you have to assume a 27% Crazification Factor in any population.
John: Objectively crazy or crazy vis-a-vis my own inertial reference frame for rational behaviour? I mean, are you creating the Theory of Special Crazification or General Crazification?
Tyrone: Hadn't thought about it. Let's split the difference. Half just have worldviews which lead them to disagree with what you consider rationality even though they arrive at their positions through rational means, and the other half are the core of the Crazification -- either genuinely crazy; or so woefully misinformed about how the world works, the bases for their decision making is so flawed they may as well be crazy.
http://kfmonkey.blogspot.com/2005/10/lunch-discussions-145-crazification.html
I think a large part of it is also refusal to admit they got it wrong by voting Republican and/or Trump in the first place.