Quote from Amandla Stenberg. 

The line between cultural appropriation and cultural exchange is always going to be blurred… But here’s the thing: appropriation occurs when a style leads to racist generalizations or stereotypes where it originated, but is deemed as high fashion, cool or funny when the privileged take it for themselves.
-Amandla Stemberg, 10 Times Amandla Stenberg Conquered The World With Her Young Black Intersectional Feminist Badassery