Yes, but in some more than others. There are many more blondes in Western Finland for example than in Nigeria.
True. Genetics was never my strong suit. But I doubt race mixing will get rid of "natural blondes" in any case. Perhaps not the blonde bombshells you personally like, but blondes will exist nonetheless.
I get what you mean. Seriously I do. There are, in fact, some cultures that I do look on as "inferior" in some way. But in all honesty the ones that draw the most immigrants will, by default, be the ones with the most inter cultural mixing. That's just how reality will work.Its hard to give a clear definition. But you know one when you see one. I would rather not give any examples thought, some people might get upset.
But i can give you an example of a superior culture. Its a culture that can create a well functioning society/nation that everyone wants to be a part of/live in.
Based on that^^^^ If one opens all borders in the world, countries that will have most immigrants will be the most superior culturally.