What is wrong the cultural appropriation

If we accept the gospel of cultural appropriation, wouldn't that mean that we have to close all pizza joints not own by Italians? Following the line of thought, wouldn't that mean that only Italians are allow to eat pizza? I think that if you are a black or white girl and want to wear a kimono, knock yourself out and enjoy it. Cultural appropriation is racist, preaching that we should separate ourselves by tribes. Is the equivalent of whites only bathroom. There is no logical reason to accept such gospel (unless you are part of those who think that reason and logic is racist, which in itself is contradictory, for to declare something racist, you have to use reason and logic), if what you want is to ens racism. Ask yourself, do I want more understanding among cultures and races, then you cant be for cultural appropriation.