There's a balance in there that needs to be struck on practical grounds. You don't get groups without in-group bias. You don't get in-group bias without prejudi

There's a balance in there that needs to be struck on practical grounds. You don't get groups without in-group bias. You don't get in-group bias without prejudice. Getting rid of groups/tribes/whatever is obviously impossible, but the more you temper how much human identity is derived from them, the more you reduce the downstream negative (and positive) effects. They aren't all good, and they aren't all bad, like everything else. You can't have all the good without the bad unfortunately.