Caveat regarding Japan. They are an enclosed monoculture, with outsiders viewed-- at best-- as less than acceptable. They abhor immigrants and go out of their way to disallow them as citizens.

Okinawan’s are viewed by mainland Japanese as “southern scum”. And not quite regarded as real “Japanese”. If anyone disagrees with my assessnment I am all eyes. And ears.

Get your facts first, then you can distort them as you please.