My understanding is that MAGA is mostly the criminal element of white, upper middle class suburban US. The lumpen bourgeois, with some white senior citizen hanger-ons. Rednecks where I live are largely liberal or apolitical, and my friends in other states say about the same thing.
There's this liberal myth about the majority of rednecks being virulent racists and MAGA diehards that needs to be put down like a dying dog. It's perpetrated partly by shutins with little reference to society outside of what they see deliberately conveyed on screens.
While there are unhinged, bigoted rednecks who tend to speak loudly in public, they're a despised minority who don't even get invited to family events, in many cases. This can be seen in the suburban variant of MAGA too. It might not be your dad, but instead, your estranged uncle who's divorced 7 times and can't hold a job down, while he can't be trusted not to make things weird at cookouts.
The "redneck = MAGA" trope is kept alive through bourgeois media, like when Taylor Swift depicted a bunch of farmish-looking people as militant homophobes in the video for 'You Need To Calm Down', or maybe on boring liberal late night TV.
A clearer picture indicates that MAGA is largely a movement drawing from minorities of the white upper and middle classes, situated in cities and suburbs. They're mostly small business tyrants who aspire to be big business tyrants, but feel they've been held back by changing social attitudes and regulatory government.
The poster child for MAGA isn't named Cledus, it's Preston.
Having to tell cynics that human nature is influenced by people's conditions of life really gets tiresome, but I guess we'll be doing it until we croak. The idea that human nature is fixed in the way you're suggesting is antithetical to freedom of choice, and in a way, also linear time/historical progression.
I see you're in the solarpunk server. Did you join to tell everyone that saving the ecosystem is hopeless, and we should accept our imminent extinction?