It started with the Tea Party. It compounded by losing to BHO twice, who if you'll remember, legitimately 40% of them still believe he is a Kenyan.
It's a bitter push back against living in a flyover state, a rural area, lacking education, and being generally looked down upon by coastal America for being bumpkins.
I don't blame them for lashing out, it's natural to do so after having made so many poor life choices that they are at the bottom of the socioeconomic ladder.
The goal should be to educate them, but circle back to that whole "being looked down upon by them dadgum university elites" and now they are antieducation as well, they actually believe a University campus is just full of snowflakes.
Ignorance is bliss.