within the context of fiction, yeah it doesn't matter at all. there's an entire genre of literature with authors using fake words and random symbols and stuff in their writing, stuff doesn't have to be translated there. the only thing I found funny was the implication that nonwhite people are somehow more entitled to footnotes than white people are.
the content of the tweet makes sense, it's just written in a silly way.
the first line implying that some people are more worthy of footnotes than others is dumb. also, who is this even for? like your example, this is something that's always been done in writing but couched in "it's not my job to educate you" language