How do we reunite then?

If we are constantly going on about how bad one side is (fwiw, I basically agree with you about that), then it will only lead to more division and resentment. Based on my in group's behavior, it seems like most people who believe this think that continuing to publicly shame and wag fingers at the other side is how we get to a better world. And it so clearly is not.

I'm frustrated by this, but also truly searching for solutions or alternative explanations.