If you mean, intermarriage, yeah, nature loves diversity. The reason is because you are more likely to have a basket of mutations which allow survival of certain genetic arrangements during moments of intense selection (Darwinian culling) in diversified mating than would have bern the case, as is in inbreeding. Go check why mixed breed dogs typically outlive pure breeds.
Sorry, I wasn’t clear.
For the multi-culti diversity types, the highest price they can give a work of art or literature is that it is transgressive, which means that it offends people.
So what is more transgressive today than racism, and why isn’t this form of transgressiveness a good thing?
http://en.wikipedia.org/wiki/Transgressive_art