This. The social Justice warriors that are peddling the cultural appropriation line are not representative of the culture or the people of that culture, their opinions, or feelings on the matter.
What we, as a society, need to do, is let cultures be offended when they feel offended, and not assume that they will be offended by something that we think they should be offended by.
Short version is: don't be offended on behalf of someone else.
You don't know them. You don't know their culture. You don't know what they see as offensive.
Stop assuming you do.