Surprising how easy it is to fracture American society then.
I remember back in 2016, when all the Trump/Putin brouhaha first started making rounds, one staunch right-winger whom I know said something along the lines of, "if Putin helps him hang all our traitors and clean the trash out like he did in Russia, I'm all for it".
(And yes, conservatives who believe Obama was the sole source of division are also out of touch. People really need to try to understand the other side).
It was like a mirror image of Trump's election in 2016.
While personally I preferred Obama (as a non-US citizen) it's really sad how much anger and rage is expressed over these political differences.
Personally I think gerrymandering is the proximate cause, as it creates more safe districts for party members, which allows them to be more extreme than would be acceptable in a more competitive district.