Mike the Heathen sends this, a Patheos article by Tom Swiss that includes:
I am being politically incorrect again, but I find that there are few more wrong and infuriating notions than “cultural appropriation.” It is ahistorical, ignoring the way in which ideas diffuse across cultures. And it is ontologically confused, believing that ideas are in the category of “property” — the same confusion that lies at the root of the broken idea of “intellectual property” and the “War On Sharing.”
And the term becomes even more ironic when we consider its literal meaning. According to the Wiktionary, “to appropriate” means “[t]o take to oneself; to claim or use, especially as by an exclusive right” or “[t]o set apart for, or assign to, a particular person or use, especially in exclusion of all others; with to or for”. So if anything, it is those who are claiming that bits of culture are the exclusive right of a certain group who are practicing appropriation.