I'm not saying these costumes were cool or appropriate, I'm saying they weren't cultural appropriation. And while I agree about the anti-indigenous racism packaged as a US cultural export, it's mainly a problem with the US, not so much with the rest of the world who doesn't have a direct power struggle with indigenous Americans.

I believe making it a worldwide problem obscures the specific responsibility of Europeans and the United States in both suppressing and appropriating indigenous culture.