uniqueness is a virtue
taking 100,000 years to emerge from a primal society of upright hominids to a diffuse and varied clanish tribes, each with its own tailored behavior constraints, is not easily disrupted. expecting another, violently defended region, to accept at face value what another region of peoples deems 'acceptable' is quite naive, humans dont like to change if it means relearning a completely different way of life. pecking orders remain intact, even as 'ownership' of areas passes on from one generation to the next. in addition to the logarythmic increase in populations demanding the same priviledge of what was once plentiful and abundant resources, and theres no end to squabbling and elbowing amongst the hordes for the 'leaders' to settle. its only going to get worse, even as the communication networks increase the interface surface and their melting together.