The notion that one drop of some kind of blood or other makes one categorizable as part of that group really could put an end to this whole silly run-around.

Like you, I am descended from people like Lucy or Little Lucy from the central African plains. Like the Sioux, the Cheyenne, the Mohican and the Algonquin, ancestors of mine walked the land bridge across the Bering Strait.

And I am sure that I have common ancestors with every Japanese, Chinese, Phillipine and Indonesian human alive today. It just depends on where you want to look.

Being, therefore, part of every ethnic group in the species, I am delighted to report that, after due consideration, I can conclude that there is no "they" there.

A