As I’ve posted before, the actual politically incorrect thing to say is that the Republican Party (and the wider conservative mvmt) has thoroughly radicalized itself into obscenely anti-social behavior and conspiracies that’s divorced from reality that precludes any meaningful “bipartisanship”
Is it "polarization" or has one political party decided to become a death-cult not beholden to any rules, social contracts, or commitments to democratic governance?
Who can say?