the Jewish community have always been blamed for things:
Jesus being crucified
the plague
all of Germany's problems
other stuff I'm sure
in fact, in lots of old pieces of art there are Jewish people being depicted as bad, some have devil horns and in one of them they are shown grinding up children for blood as some need to survive.
anyway all of this hatred is still around, there are some people and some religions that still blame the Jewish community fo all the bad stuff that happened. it doesn't mean they are right and it doesn't justify all of the bad things that the Jewish as a community have gone through.
