>>509674055The northern parts of Japan weren't part of the Japanese empire until the late 19th century. They physically couldn't settle there because rice farming before GMO couldn't handle even the slightest bit of cold and like 85% of the Japanese population was subsistence farmers. So no emphatically in every single criteria of race they aren't white, but the Ainu/Kuriles may be related to Tartars. Also Kyushu used to be populated by Austro-papuans like in picrel, even as late as the 8th century, they were called the Hayato people.