Not that I have anything against such a person. Some of my best friends are autistic, and most of my readers are. They’re probably also transsexuals or have at least thought about it (it is sort of weirdly interesting from an anthropological perspective, sort of like Neanderthals and dinosaurs). And cocaine can’t be any worse than, say, instant coffee, Australian wine or transsexualism.
As for being black, anyone with half a brain identifies as such. Because these days that will get you admitted to medical school (many college applicants do in fact falsely claim to be black) and appointed to the Supreme Court. It also gets you immunity against prosecution for slapping anyone you damn well please at any time you damn well please, and perhaps shooting them too. Soon, it might also get you some reparations green.