The Importance of a Common Framework in Peace

I'm attempting to mount a defense for classic Western values, let's say that, particularly the value of individuality. The core idea is that I don't care who you are, but I'm going to interact with you as if your individual identity is superordinate to your group identity. If you make group identity paramount, then you degenerate into tribalism. That's what it looks like to me. And I think the only way out of that - even though it might not be stable away - is in tribal and war-like culture.