So many posts to reply to. Sorry if this takes a while. I'll get to the my definition of culture question later.       Would it not annoy you if you went to Sweden and the people there were approximately the same mix as those in New York, you go to Paris and most of the people you see are muslems in hajibs and blacks? Would it look right seeing blacks in the Bavarian Alps wearing lederhosen? What if you went to Rome and instead of gregarious Italians all you encounter, for the most part, is some grey mass that is approximately the same as everywhere else.   Well, you see, if you've been reading, I try not to be racially aware, so no, none of those things would bother me. It would bother me if cultures vanished (and I mean 'vanished', not 'changed' - cultures are always changing) but as I see no necessary connection between ethnicity and culture, the scenarios you describe are not relevant.