Koreans and ethnic Japanese both have their origins ultimately in Siberia, so it's not really surprising that Eskimo-Aleuts and Na-Dene peoples are often mistaken for East Asians. Weirder to me is the fact that Eurasians (i.e., children of a European parent and East Asian parent) are sometimes mistaken for Native Americans; I don't see the similarity at all. Maybe it's because the face model (and voice actress) of Disney's Pocahontas, Irene Bedard, is part Inuit and part Métis (who are of mixed French Canadian and Algonquian, especially Cree and Ojibwa, descent).One of my friends is Eskimo-Inuit/ Swiss. She is always taken for pure Japanese at the anime Cons she goes to--- by Japanese!-- so, yes, it is really pretty subjective.
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