@Chrona
One Piece portrayed it a bit deeper than expected for a fantasy battle shounen, and it's more than enough for the style. But yes, not a very good example.
I would say it's not only Japan being an ethnostate - takes on racism will kinda differ in parts of the world with different past experiences and present situations. Some things are common, some aren't, and the latter ones may not work outside their own culture.
And expecting all the world to dedicatedly comment on a very Western-centered political situation could be called wallowing in priviledge.