Since it's the powerless, the marginalized and the discriminated against who are most likely to complain of cultural appropriation, I find the charge of "dangerous totalitarianism" ludicrous. 

And what do you think has been going on here? There's no law being broken. But it's the critics having their say. And cultural appropriation from the mouth of a critic is the kiss of death.

The rest of your post is the usual rant about something else altogether. It's the old Terra Nullius argument which has been used by those taking other's property without permission for centuries.

It's always funny how something is "common heritage" until there's the possibility of getting rich. Then trademarks, copyrights, land titles, and private property signs are slapped all over them. 

Damien Hurst is the artist as huckster. If he weren't backed by clueless suits in the financial market, he'd be an undertaker.