It is true tant anti-selitism is a real problem and many anti-semitic people aren't muslim, they just believe the crazy conspiracy theories about jews. You know, the ones who say that Mossad, not al-Qaeda did 9/11.
We have the same kind of stuff in France. Some says that jews did Charlie Hebdo, and other stuff like this. Some even say that the Shoah never happened, that no jews died in nazi concentration camps or that it was all a false-flag zionist operation to push for the creation of Israel.