My theories are as follows;
- Jealousy -
For hundreds of years up until the 1940' we possessed a large amount of wealth, where very successful and well educated. More so then any one in the world. Could it be jealousy or our success tha spawned the Anti-Semitic plague?- Ignorance-
Judaism is often seen as the most secretive and strange of the Abrahamic faiths and our traditions may seem strange to an observer. Perhaps ignorance and confusion of our traditions and practice spawned hate?