Probably because everyone who call themselves Jews today are an evil cult originating from Pharisee usurers and slave traders? If you go back in history, it appears Judaism once might not have been an evil cult over 2000 years ago, but all of it's members today are generally the co-opted version implemented by the Pharisees. Here's a good short read on that subject:
https://www.biblebelievers.org.au/babelaw.htm
They blame Rome for being the cause of the Pharisees taking over Judaism and turning it into an evil cult. Whatever the cause of the Pharisees taking over, I dunno. Rome sounds plausible as installing a puppet regime, but it might not be the truth. The Pharisees being the worst and most evil of the Jews might have been inevitable to take over anyway.