This is a natural response to divergent opinions [1]. It’s the mechanism through which social media polarises populations [2][3].
Our brains simply didn’t evolve to deal with multiple hypotheses and different opinions, and most of us never get the training to do so calmly and effectively.
> still a ghoul if you defend a man who was personally involved in bombing 150,000 civilians
If you can't see the difference between defending a person and defending the meaning of a statute, sure. It makes life simpler when we turn up the contrast to absolutes.