Except that Y DNA has more genetic change than non-Y DNA. Take the chimpanzee Y chromosome for example, it differs a staggering 30% with the human Y chromosome and that's likely to be a conservative estimate. One would expect that 15-30% of racial differences can be explained by Y haplogroup, and in the case of prolonged racial admixture this could be as high as 100%.
This being the case we'd expect 20th century racial maps to match early 21th century haplogroup maps. Lets have a look.
Haplogroups_europe.png
Rassenkarte_von_Europa.jpg
We'll have to assume some margin of error due to poor sampling size, even then the maps are mostly identical.
R1b matches the Western race (light blue) R1a matches the East Baltic race. N1 matches the Mongolian race. J2 and J1 are well matched.
I1 matches the Nordic race. I2b matches the Phalian sub-race. I2a matches the Dinaric race.
The only anomaly is E1 which appears to be grouped together with R1b. There is mention of a "hither asiatic" race however which appears to match E1.
What's really interesting is the match in Western Norway.
The only logical explanation is that 1) The similarities are pure coincedence 2) That haplogroups correlate with racial groups 3) That the Y chromosome influences skull shape.
The truth is likely a combination of 2 and 3.
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