At the end, Bill James expresses sentiments that are essentially identical with mine.
Self-righteousness is the great problem that afflicts our political culture. And, the problem is that large numbers of people on both ends of the political spectrum are so convinced that they are correct and that failings to see their correctness are moral failings, that we have lost much of our ability to communicate from one end of the spectrum to the other. And, there’s no justification for it on either end. None of us understand the world. The world is vastly more complicated than the human mind. No one understands whether these policies are going to have the intended effects, or whether the unintended effects are going to be greater than the intended effects. No one knows the answers to those questions. And the people who are convinced that they know the answers to those questions are just wrong. And it’s become a huge concern, because people are so angry, based on their self-righteousness, that we are: anger repeatedly expressed–anger building on anger, building on anger eventually leads to violence. And we need to get people to back away from the conviction that they are right and see that they may be wrong not about something but about everything.