Since the term reflexive already refers to what is directed or turned back on itself, smushing it together with the word self doesn't accomplish anything, besides signal intent to move forward. But so does a rear end collision at a red light. No way to get around. And what is happening when an artist refers to a century-old stereotype or a half-century old taboo isn't reflexive; it demands foreknowledge of the stereotype and associated taboos, and perhaps even some inkling that these taboos have become a little bit rediculous.
(Reflexive, to my mind, would refer to something like Hamlet putting on a play about brother-murder in a play called Hamlet.)
I don't think it even really makes sense to call it irony when what's depicted is supposed to be just an exaggerated version of the truth? I would call it a humorous hyperbole mocking two different targets.
Reappropriation might be fine. Or appropriating it from ____ to force the question of from whom. Because that's probably the critical question: does this have to be taken back from racists, or from the woke crowd using it as a totem?