I think that the cultural appropriation is a legitimate concern, and certainly problematic. I was just agreeing with you, that this legitimate concern is sometimes used to criticize natural and harmless things, like braiding your hair or eating certain types of cuisine.
Some of the people who defend this are so over the top that they seem "double agents". Like those who harass others that wear dreadlocks while being of the wrong race. Seriously, what the fuck. What kind of reaction do they expect for their actions, other than a visceral rejection of the whole concept of cultural appropriation?