[jamesrcole]

Tribalism tends to mean an "us vs them" attitude with emotive, knee-jerk dislike and demonising of "them", plus a disdain for constructive criticism of "us". I think history provides plenty of evidence of this and of how toxic it is.

[golemotron]

The irony is that the people who complain loudest about tribalism (nationalism, xenophobia) in contemporary political culture display exactly those attitudes toward people they disagree with.

Anyone who thinks tribalism can be eliminated lacks self awareness or a least a mirror.

[jamesrcole]

That's definitely an issue.

Regarding your second point, it's not a matter of the level of tribalism staying the same vs completely eliminating it. I think the overall levels have been reduced over the centuries, and there are people out there that are pretty non-tribalistic in outlook.