A new Gallup poll concludes that the strongest predictor of anti-Muslim sentiment is ... anti-Jewish sentiment. Presumably, this indicates that both anti-Jewish and anti-Muslim sentiments still are primarily associated with the American right to far-right. The overlap doesn't really surprise me, though I'd be curious to see whether it is as extensive in Europe.
One thing I do wonder about, though, is reporting bias. Presumably, liberals who harbor negative feelings about Jews or Muslims are less likely to admit them, even to themselves, as such prejudice is dissonant with the prevailing self-image of what it means to be a good leftist. I doubt that Tom Hickey, for example, would be keen on confessing anti-Jewish prejudice, even to a pollster.
But taking the poll at face value (and to be clear, I feel reasonable in asserting that the poll captures a goodly portion of the social positions of Jews and Muslims in America), it does reinforce something Jews have known ever since we set foot on these shores: the only way to insure our security, is to insure the security of all vulnerable minorities here. Anytime America looks poised to create another division between "real" and "fake" Americans, Jews are at risk of falling into the latter camp. We're all in the same boat here.