I was asked recently why Jews are
hated. I found that to be a thought provoking question. It led me to
doing a lot of reading. Even after that I saw no clear reason. In
biblical times it had a lot to do with their religious believes.
Hitler hated Jews because of his time spent living in anti-Semitic,
Vienna. Hitler later came to associate Jews with communism. This is
likely due to the part Jews played in the Russian Bolshevik
revolution.
In Poland, "Judeo-Bolshevism"
was known as "Żydokomuna" and was used as an antisemitic
stereotype. There has been a long connection between Judaism and
communism. Some say this is a fallacy attributed to The Protocols
of the Elders of Zion that told of a plan by Jews to dominate the
world through communism.