Can Empathic Concern Actually Increase Political Polarization?

Imagine you're walking home late at night and you see a poor, defenseless man being being bullied and called horrible names. Things start to escalate, and the crowd starts pushing him around, knocking off his hat and screaming at him more loudly. The man looks scared and calls out to you for help. Think about how you feel.

Now imagine that as you get closer, you see a MAGA hat on the ground lying right next to the guy. It's clear that the crowd had thrown his hat on the...