I have to agree with the above except the darker bit. There was a study of Okinawans and other Japanese trying to see if Okinawans are from Taiwan or local or wholly Japanese. Ancient remains] in a cave of a hunter gatherer before the coming of agriculture found that the person was Jomon and the same as the ancestors of the Ainu. Modern Okinawans are basically Japanese, have no connection to Taiwan, the ancestral home of the Polynesians, but a mix of Jomon hunter gatherers and later Yayoi farmers who came to Japan from mainland Asia via Korea. They are not Filipinos or other SE Asians that speak Austronesian languages.