I once saw a great way to sum it up.
The right thinks the left is crazy.
The left thinks the right is evil.
The truth is, the reasons why people lean left or right have been explained by Jonathan Haidt and are more complicated than just being crazy or evil, but I think AOC basically summed it up recently when she commented how being morally right was more important than being factually correct. If it seems right and feels right, it is right. And when you base your morals on whatever your gut feeling is, because there is no higher power to lay down morals, you ended up believing ‘reproductive justice’ is not the most ironic misuse of the word in history.