I wonder what percentage of these immigrants are ethnically east/southeast Asian, or even ethnically Japanese. I imagine a large portion of the Peruvian and Brazilian immigrants shown in the chart have Japanese ancestry (I believe Japanese ancestry makes immigration from those countries easier -- to the extent that one point there was a black market in being adopted as an adult by Japanese people -- and there is a la…
The correct modern terminology for that is racism.
Something most people don't know a lot about, because as a culture Japanese tend to be very outwardly polite so a lot of racism is very subtle and can't be spotted by someone who's just visiting.