Even native born Japanese can end up on outs if they go live in another country for long enough. They are no longer considered fully Japanese.
Now, I know that ALL Japanese aren’t like this. But such things are very prevalent.
My only point is that race problems are worse in most places than the USA. Or used to be until the DemonRATs turned up the heat in their attempt to start a race war.
Your point is a good one, and I believe is correct.
My stepdaughter lived out of Japan for almost 10 years. There was increasing pressure from family in Japan to return. She is hopefully coming back to US next year to attend college in US to get another degree.