To be clear, I blame Republicans for our polarization completely. Democrats have been compromising to their detriment for decades while Republicans have taken advantage of every loophole they’ve been able to leverage in their favor. Republicans have also doubled down on the politics of hate and fear to motivate their base instead of using anything actually based in reality that might genuinely help people.
In 2012, when Romney lost, the Republican party created a committee to investigate what steps their party needed to take in order to succeed. The answer the committee came back with was “we need to stop being racist and sexist and focus on more inclusive policies”. Trump was a sound rejection of that direction. I still believe that once Republicans have lost another election or two, they’re going to be forced to face reality finally and listen to that committee.