Note that the deer head and antler aesthetic is based on a number of depictions of w*ndigo that have gained popularity among white audiences and been heavily criticised for cultural appropriation.
"Cultural apropration" is a nothing burger championed by people who often have no ties to the culture that they claim needs their protecting. A white man speaking for indigenous american culture does not give indigenous americans more of a voice, it takes their voice away by revoking their ability to speak for themselves.
Never mind the fact that the entire point of the meme is to say that native american folkloric creatures are scary, incomprehensible, and fundamentally other, in comparison with european folkloric creatures.
"Not being racist is racist!!!" I do not understand how the asshole in this thread got people agreeing with them. It makes no sense. They had no sources, no factual backing, all they did was complain about non issues and say antiracism is racist. I don't get it.