This is a fascinating question to me. I’m not quite sure when a sort of pop postmodernism started showing up on the Right. Maybe when the current style of prosperity gospel Christianity started to gain a foothold–maybe in the Nineties? It seems as though the Protestant work ethic had an affair with The Secret, and an odd, thinking-makes-it-so kind of Christianity came out. It then merged with the most jingoistic style of American exceptionalism, The result is the current unholy mess of a worldview that is primed to think that pure propaganda is fine because, if you believe it hard enough, it will become true.
The difficulty is, that worldview can be reinforced for a while in electoral politics because that’s one realm of activity in which thinking can make it so, at least for a while.
But then you get to climate, which doesn’t care what you think and won’t negotiate.
