Its interesting that you should say that, because I was just about to start talking about separation. Even in multicultural societies there is still a degree of separation and that separation will only get bigger as time goes on. Different areas of cities adopt a racial homeland. Chinatown for example. Yep, the races all self segregate themselves subconsciously anyways. You can't fight your nature, birds of a feather flock together, blood is thicker than water, eagles don't fly with pigeons and all that good stuff... Segregation ended officially in America over 30 years ago and yet blacks,whites,latinos,asians....we all still live in our own communities for the most part. Because we choose to! Racial separation is our natural instinct.