It doesn’t even really matter what the policies are. They’ll complain for a while, but they will always internalize a Republican policy shift no matter what it is. They used to treat “free market economics” as a religion just 10 years ago.
Secondarily, they love to define their identity as opposition to the northeast (a stereotypical fictional version of northeast). Democrats and “coastal elites” are the same to them. Once they elected a black man, they all got more racist. They nominated a woman, then they got more sexist. They campaigned on social programs, fuck the poor (even if they are poor).
And there is a cognitive dissonance between their beliefs and their experience. They’ll say “deport them all” but be personal friends with immigrants from church. They simply don’t connect their political beliefs to their reality.
I’m a southerner and I don’t see a future for this country. I used to think if they felt enough pain, then they would take politics seriously, but then a whole bunch of them died of COVID and it changed nothing. If I was a non-American, I’d be telling my government to do what they can to remove all dependence on this country as possible because it won’t get better.