I agree. This is what I've observed: Pride and moral superiority are the primary sources of political extremism. Any attempt to reason in that emotional state is going to be filled with a ton of confirmation bias. Mix in some greed and it gets even worse.
These people have a tendency to strongly identify with their particular brand of ideology and consider any challenge a threat. They label people that disagree as evil or stupid which makes them feel even more certain in their moral superiority. They close their minds to any dissenting opinions and hide in their echo chambers continuing the vicious cycle because being right feels good and being wrong feels bad.
Some humility and genuine curiosity are ways to reverse the cycle.
That's sounds pretty close to where I'm at now. Ideally I want a libertarian society, but I don't believe it will work in practice in a lot of areas (like health care or completely unregulated capitalism). On those issues I'm more aligned with the Green Party.
I'm not sure what the "best" solutions are, but I know wealth and power are way to consolidated now and we need to decentralize.