The Jews were the bankers and money lenders due to both Islam and the Church prohibiting interest on loans, so the money would be funneled to Jewish bankers, authorized by the Kings to be money lenders. This led to abuses such as those outlined in Oliver Twist and Ebineezer Scrooge. Jealousy and envy followed them, and the they killed Jesus became the mantra of organized Christianity.
Islam accepted the Jews until they returned to Israel. For a while there were good relationships until Israel turned a barren desert into a thriving country. Then, with Islam seeing Judaism being a threat to the holy places of Islam (Dome on the Rock, etc), it became war to the knife.
Fake news didn't start in this century. It was fake news then, and it's fake news now.
Sadly, I heard this prejudicial and unscriptural cliché when I was a kid in the 50s, and had to figure it out and put it to rest after I was born again in adulthood.
Except for that Prophet killing all the Jews of Medina thing.