The idea of cultural appropriation inevitably leads to racism by those who try to enforce some sort of moral code against it. If you don't look like most people of your culture - you're suddenly a racist. Even when you're just practicing your own culture.

Anyone remember the story of the half-white, half-Japanese woman who was derided for culturally appropriating the Japanese because she, ethnically, looked closer to Caucasian/white than Japanese? I especially loved the part where the overly aggressive PC hate mob apologized to her. Except the apology never happened. Instead, they doubled down on her being in the wrong...

Increasingly, learning about a culture is becoming "cultural appropriation" to the PC extremists. Identity politics, of all forms, is a disease - from what I have seen it has only ever lead to negativity and conflict.