I'll buy that.
Early on in the 'Kennewick Man' controversy and after a DNA analysis was done (officially, deemed 'inconclusive.') I saw a break-down of the ananlysis, at the top of the list was Ainu = 23% with others like Polynesian and ect following on down the list. After that one time, I've never been able to find that data again. It's not even in the book written by James Chatters, Ancient Encounters, about his studies on Kennewick Man. I guess it's just to PC.
There was a court case from the Indians after a picture of the reconstructed face of 'Spirit Cave Man' was released. He looked very similar to Kennewick Man.