This, however, is based on an empire that will fall. You want to be valuable to a tribe, because there really is strength in numbers (~150 is the maximum), and when the empire is no longer enforcing the rules you depend upon, your tribe is the one that will protect you as you protect them.What's interesting is that based on my background and mindset, the only type of group I desire to be part of is a diverse one. These are generally larger, more formal than the tribal group. Large metropolitan areas, large universities, professional organizations, etc. function with a set of formal guidelines that apply to all impersonally. They tend to examine the basic common denominators needed by all. Diversity creates a different type of interpersonal boundaries than the tribal group. It creates a hands-off mentality that requires objectivity and tolerance in order for cooperation to exist. It focuses on finding specific commonalities for specific goals, rather than attempting to make everyone's behavior uniform.
This increased tolerance of diversity is where humanity needs to lean in order to survive as a global village. Of course people will form myriads of small tribes in churches, communities, etc., but w/o isolation from the rest of the world, the ability to think with a different set of social boundaries will be necessary. Would this negate, or at least minimize, the need for scapegoating?
There cannot be a global unification without an outsider that is sufficiently different to bring humanity together. As long as we all live on this little ball of dirt and rock, we will divide it and ourselves into pieces and groups.