Why Hitler hated Jews?

Hitler believed the Jews were the ones who caused the economic crisis in Germany which resulted in a depression.

Hitler blamed the Jews for the loss of WWI. He believed that Germans were stabbed in the back by Jews and that's why they lost the war.

Hitler believed that only white people of Nordic decent were worthy to be called a master Race. Some people believe that Hitler hated Jews Because they looked different.

Hitler believed that Jews are Disloyal and untrustworthy. He believed they can never be proper German citizens. 

Hitler believed that Jews have gained much Economic influence that they became dangerous to the German economy.

Hitler believed the Allies won the war because Jews were manipulating Americans, British and Russians behind the scenes. (See How Did the Americans Win the Revolutionary War?)

Some people believe that Hitler thought that Jews were the root of all evil and as a result he hated them.

Hitler believed that Jews were an unnatural race that threatened other races.

Hitler believed that Jews wanted to dominate the entire planet.

Hitler was influenced by writings that went against Jews. The problem of Hatred of Jews existed before Hitler came but he became an extremist in implementing those ideas.

Some people suggest that Hitler blamed his early failures in life on Jews who were filling important positions that he didn't mange to fill.

Hitler believed Jews caused wars. He blamed them in one of his speeches and said that they will pay for it if another war happened. (See How War Affects Economy?)

Hitler believed that Jews are Biologically different. He believed that a person is born a Jew and that this makes him inferior.