Ok, but that's mostly because you use that particular cutoff point, European decended populations just have gone through the demographic transition earlier and their share of world population is similar to what it was in 1750. It has nothing to do with any selection against blue eyes in the usual sense.
Well that brings us back to the question of what you mean by "natural selection" which you defined earlier as
changes in the frequency of genes not planned by wise and well-intentioned humans.
It sounds like you are limiting natural selection to frequency changes which are a direct result of the effects of the genes in question. Is that right?
I was browsing my RSS feed, as one does, and came across a New York Times article, "A Village With the Numbers, Not the Image, of the Poorest Place", about the Satmar Hasidic Jews of Kiryas Joel (NY).
Their interest lies in their extraordinarily high birthrate & population growth, and their poverty - which are connected. From the article:
From Wikipedia:
Robin Hanson has argued that uploaded/emulated minds will establish a new Malthusian/Darwinian equilibrium in "IF UPLOADS COME FIRST: The crack of a future dawn" - an equilibrium in comparison to which our own economy will look like a delusive dreamtime of impossibly unfit and libertine behavior. The demographic transition will not last forever. But despite our own distaste for countless lives living at near-subsistence rather than our own extreme per-capita wealth (see the Repugnant Conclusion), those many lives will be happy ones (even amidst disaster).
So. Are the inhabitants of Kiryas Joel unhappy?