Is there an in universe explanation for racial segregation within the Star Wars universe?
Currently trying - for the third time now - to make my way through this show and one thing which has stuck out for me is the weird diversity within the show.
e.g. The crusty hippies on that farmland planet had one, literally one, Mongolian looking chap among their number.
e.g. The Imperials, also on the farmland planet, and back on Coruscant have a very light sprinkling of very dark skinned "pure" black people.
Now obviously the real world explanation is some apparently quite limited attempt at diverse casting but what could possibly be the Star Wars Universe explanation for this?
Because we have a universe where humans have spread out over thousands of planets over a period of presumably thousands of years, yet have somehow retained racial purity. Wouldn't this mean that the humans within this universe must all be practicing racial segregation when it comes to breading and thus therefore all must be pretty racist? And they've maintained this racism over thousands of years?!!
I can't see another explanation - We should really be seeing a largely mixed race society by this stage of interstellar settlements and yet, no.
Has anyone who's read any of the Disney extended universe books come across any in universe explanation for this weird racial segregation that exists?