You don’t have the correct skin tone.
These people think they are the real Jews and you are a white supremacist usurper.
There are traces of this in the Rastafarian movement.
There’s a branch of antisemitism which holds that Ashkenazic (i.e. European) Jews were not originally Jews but descendants of Turkic Khazars who converted to Judaism. This is used to delegitimize Israel by suggesting that today’s Fakestinians are the original inhabitants & that modern Israelis are interlopers.
These black thugs use fake Jewishness as an excuse to murder Jews. Bottom line.