Yeah, sorry, no. Gene flow can happen with extraordinary rapidity. This hypothesis is perfectly plausible. Whether it's true or not I can't say. But you should read up more on gene flow.
“Gene flow can happen with extraordinary rapidity. This ...Whether it’s true or not I can’t say. But you should read up more on gene flow.”
Yes, well, “scientists” also tell us that there will no blonds left in the US by the end of this century due to the influx of darker people and the recessive nature of the blond coloration gene.
My point is, I don’t think that the proliferation of pale skinned people in Europe squares well with evolutionary theory, which of course is “red in tooth and claw.”