Various tribal structures have existed and still do (I'm a registered member of a clan, was clan secretary at one point) but Rousseau's bands are a fantasy with no archæological basis.
I see to reason to speculate on history when we have collective pride visible in our daily experience. Especially not to say the former is valid and the really-experienced one isn't.
If you're an angry autist with that cultural dogma, I'm not gonna try talk you out if it. Most people find it easy to be proud of their ancestors or family or country.
Suffers from the same individualism as some other comments.
Most people know how to be proud of things outside their small self. It's only that Protestant individualist mindset that denies the reality of the collective, and with it collective pride.
people tend to like to be around people that’ve shared a same background, is that’s ok? And to what degree?
There's different ways of liking people: you don't like your mam the same way you like your friends, and you don't like your funny friend the same way you like your lover.
I have some pretty obscure interests, and the small group of local people who share my interests are from diverse backgrounds (but homogeneous in interests). Different ways of 'liking'. Shared background is one.
Hahaha. "male slash right-wing" what are you on about