@Ainz Ooal Gown
Difference cultures, at different times, have different opinions about what constitutes “race”.
100 years ago, the Irish and Italians were considered “Black” on U.S. census forms, and Italians were not allowed to marry “Whites”.
In Japan everyone grew up being able to tell the difference between the different places the Japanese people came from.
I came to be able to recognize the differences between the different Japanese races and Koreans and Chinese and some Philippines and people from Taiwan. For me the differences were unbelievably subtle until I started “getting it”. After I’d been there long enough I was finally able to sort out the “What am I supposed to think about this person” so I could at least use the right verb forms.
Because even in Japan you don’t want to sound like you’re from their version of “the Ozarks” if you want people to take you seriously.
I remember sitting in a bar talking with a friend about trying to figure out how to tell whether someone is Korean or not, because at the time that was the BIG thing that you were supposed to keep straight. And in the middle of talking he realized I had a different skin color than him and he said; “Oh my god you’re white! I’d forgotten”. Which was fine, because, like, he was ok with me being light skinned and I’d forgiven him for being an Australian. So it was cool.
You get into a place like Japan, where all of the bigotries are COMPLETELY different - like, not even close to what you grew up with - and all of a sudden you find yourself caring a heck of a lot less about the things your folks or home town taught you about “who to look out for”.