Most American Jews are Democrats for two primary reasons. First, experience as an oppressed minority makes them more sympathetic to the plight of other oppressed minorities. Second, a long history of anti-Semitism on the right (before someone says it, yes, there are some anti-Semites on the radical left).
Basically..yeah.
Aside from Israel..Jewish issues generally make Republicans, cringe.
In fact most them are trying to get Jews to accept Jeebus as messiah.