The clear, obvious root cause is that humans have a deep tribalistic streak. I would love to hear a solution to that that doesn't involve invasive action to edu

The clear, obvious root cause is that humans have a deep tribalistic streak. I would love to hear a solution to that that doesn't involve invasive action to educate people in early childhood. A baby step in that direction was integrating public schools, and to this day a major political party is still trying to reverse that simple measure.