Just imagine if all of the white people of North America gave up any misappropriated culture, music, art, literature, clothing, hair, speach of racial minorities and stayed strictly within the boundaries of European white culture. White people would get by fine, but all the racial minority artists and musicians would go out of business and beg  for government financial support.  

Oh wait a moment... THEY ALREADY DO !  So the answers is MORE  appropriation, not less.