It's "extremely racist" because the new requirement by certain ideological groups is that depictions of certain ethnic groups has to be done with extreme sensitivity, otherwise they're racist. It's an extremely high bar (e.g. I'm sure a huge amount of American material depicting the English or French would be considered racist if that standard were applied). The result seems to be a general expungement of Native American imagery in the US, even of some stuff created by Native Americans themselves.
> It's also quite funny when I saw that "black magic" is now considered racist. Guess what? It's also called "black magic" in Serbia since centuries ago, when noone here ever saw non-white man. Black in this context symbolizes darkness, and fear we feel in the dark. Not a skin color.
First they go after the mockery, then they of after the innocent stereotypes, then they go after the things that just have a coincidental relation (because they can't stop).