We could honestly learn quite a bit from them.
I spent 4 years in Tokyo doing my PhD and I had a great many friends who loved showing off their white friend. I was invited everywhere, treated well, and made to feel very welcome.
But never was I or any Jap I ever met ever in any doubt that I was a “guest” and would never ever be “Japanese”
If I had moved permanently and my girlfriend had joined me and we had a child together, in Japan, that kid would not be Japanese.
Compare that to the west, where any Somalian nigger Muslim can squat on a patch of dirt for an abitrary amount of time, shit out a baby and that baby could grow up claiming it was “British” or “American” or any other white, western nationality.