I don't understand why you think your question should have a simple answer. 'Race' is, very obviously, a coarse division of human genetic diversity into a few c

I don't understand why you think your question should have a simple answer. 'Race' is, very obviously, a coarse division of human genetic diversity into a few clusters. That doesn't imply everyone fits neatly into one of the clusters. Saying someone belongs to race X is just a way of saying they are more similar to that genetic cluster/area than any other. Or to some point between two clusters, e.g. they are race (X + Y)/2 (Amerindian-Caucasian, for example). Try applying the same logic to any other concept - it is nearly always the case that concepts in language do not perfectly describe the underlying reality. Yet we're not stupid enough to then claim that means the underlying reality is meaningless.