"preferentially treat their own 'ingroup' preferentially"
It might make interesting reading to learn about people who don't have an ingroup or who don't prefer their ingroup.
Or then again, it might just be depressing.
It might make interesting reading to learn about people who don't have an ingroup or who don't prefer their ingroup.
Or then again, it might just be depressing.
This was the classical experiment I remember: https://en.wikipedia.org/wiki/Realistic_conflict_theory#Robb....