I think there is a lot more to it than we Western societies know of.
Take castes for example Japan has castes or "Burakumin" even now in 2023. Anyone who deals with "unclean" job like slaughterhouse, undertaker, obviously Japanese mob (which ironically was created due to the discrimination). Supposedly (and highly likely) the people who were tasked with cleaning up in the radioactive areas of the Fukushima Daiichi disaster were all or labelled Burakumin people.
Then there is Japanese blood personality types which is yet another form of discrimination, lord help you if you're type B.
The indigenous residents of Japan Ainu are also discriminated against.
Take castes for example Japan has castes or "Burakumin" even now in 2023. Anyone who deals with "unclean" job like slaughterhouse, undertaker, obviously Japanese mob (which ironically was created due to the discrimination). Supposedly (and highly likely) the people who were tasked with cleaning up in the radioactive areas of the Fukushima Daiichi disaster were all or labelled Burakumin people.
Then there is Japanese blood personality types which is yet another form of discrimination, lord help you if you're type B.
The indigenous residents of Japan Ainu are also discriminated against.