Why People Hate Jews
I took two courses in Judaism at the ,local Cal State University for the express reason of finding why the Jews have always been persecuted. The question was never answered, so after classes I asked the Jewish instructor. She still wouldn't venture any information on the subject, so I asked if it was because they have always voluntarily set themselves aside from the general population of any land they settled in and refused to assimilate, or "mix," thus making themselves an unknown in the community. She said I was very close, so I took it as a good guess and left.
We human beings don't care for "unknowns." We feel uncomfortable when we don't know what, or who, we are dealing with. I was made fun of all through high school because I went to a holyroller church. So I personally understand the general population shying away from, or making fun of, dress, and actions, and customs, and religion that is not what we are used to.
My feeling is that at least some Jews would love to be accepted by the community, but after 4000 years with their God they are afraid to change and wouldn't know how if they wanted to.