If you found this interesting, I highly recommend reading "The Righteous Mind" by Jonathan Haidt. It's deeply impacted how I think of morality and politics from a societal and psychological point of view.

Some ideas in the book:

- Humans are tribal, validation-seeking animals. We make emotional snap judgments first and gather reasons to support those snap judgments second.

- The reason the political right is so cohesive (vs the left) is because they have a very consistent and shared understanding and definitions of what Haidt calls the 5 "moral taste receptors" - care, fairness, loyalty, authority, sanctity. Whereas the left trades off that cohesive understanding with diversity.