I didn't say anything about "diaspora blacks", I was using hutu and tutsi as an example of typical tribalism that is common in most countries. Your average black in america likely doesn't descend from either of those tribes.

But since you brought it up, "diaspora blacks" as you call them, are ruthlessly tribal. The readily break into factions and value the group above their own lives. They will attack outsiders in a swarm, much like africanized honey bees. They will reject information if it comes from an outsider. This is normal. It's how most of humanity operates. The enlightenment was the anomaly.