Except that in the case of Ainu, they are not indigenous to Japan, the indigenous people of Japan is the Jomon and they were already in Hokkaido centuries befor

Except that in the case of Ainu, they are not indigenous to Japan, the indigenous people of Japan is the Jomon and they were already in Hokkaido centuries before the Ainu existed. The more common accepted theory according to recent DNA studies is that the Ainu are actually Siberians who mixed with Jomon and also mainland Japanese. Saying that the Ainu are indigenous to Hokkaido is a common misconception of Western scholars, they somehow insist in this historical error.