Is Tribalism the Source of Most Conflict - Historical and Contemporary?

Apologies for shifting the September meeting originally scheduled for September 28 to the first week of October.

Evolutionary behaviour suggests that we are most likely to trust those we are most familiar with - family, kin, fellow clan members, people who belong to the same ethnic group, perhaps even people who look most like ourselves. Whether the same principle holds in reverse is debatable. Are we prone to make enemies of those who don't belong to the same groups?

Sources of conflict are many: power, land, resources, money, religion. But some would argue that our evolutionary psychology exhibited in forms of so-called tribalism underpins most conflicts. While we might think of Africa as being the main source of tribal-based conflict in recent decades, we should not lose sight of what occurred in the Balkans, the Middle East and Myanmar. Can the recent polarization of many Western ostensibly democratic societies along ideological lines be considered as a sort of "political tribalism"that may doom us to ongoing conflict. Are we all, in the end, tribal? An interesting read can be found at the link below:
https://www.theatlantic.com/ideas/archive/2022/01/tribalism-myth-group-solidarity-prejudice-conflict/621008/