"Cultural appropriation" is newspeak. It defacto must be considered to be wrong because the term was invented in order to put a negative spin on sharing.

By the same token "discrimination" is seen as being defacto wrong even though no-one would take issue with the fact that you literally distinguish people by their physical attributes "yeah, he's the one with the brown hair".

It literally means "the bad form of cultural copying". As "discrimination" in common parlance means "the bad form of discrimination".

Contrast with the sentence "how do I discriminate between French and German words in this text". In that context, 'discriminate' doesn't have a negative bent. But in basically any context to do with real people it does.

Linguistics(?) is hard...