I'm not even sure if they count, they're just larping the most racist stereotypes ever devised. If I put on a yarmulke and eat a Christian baby, does that make me Jewish? If I put together a horrible conlang loosely based on Yiddish? If I make their holy symbol mean effectively the same thing as a swastika, but less fashionable, by putting stickers of it on all my atrocities? I mean, I can keep going; tell me when i count as jewish.