Hardly. I myself change colour all the time, depending on how much sun I get. But it would appear that the races "scientific racism" as I understand it classifies as smarter, are all of paler disposition overall; "whites" in the traditional sense, european jews, and east asians. Calling them all White-X is a way of drawing attention to this strange fact. Is there something about sunlight deprivation that sharpens the mind?
I'm not sure about that. I don't have statistics, anecdotally dark skinned Indians appear to be comparable to East Asians.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.