Other contributors have said "What are common prejudices against men?" is the same question as "Why is there prejudice against Jews?" If you believe that these are not asking the same thing and should be answered differently, click here
A whole range of stereotyped notions and images about the Jews are deeply embedded in European and American culture. These may be regarded (non-historically) as the starting point (or symptom, for that matter) of the problem.
Hitler was a failed artist who's art was rejected by seven people. Out of the seven people four were Jewish. He began to blame the Jews for his failure and his ill liked job. This may be where he's...