As the Europeans and the Muslims begin to have more and more problems with each other, there will be the natural tendency of some Europeans to try to find common ground with the Muslims to make their society more harmonious. One way some (many?) might try to "connect" with Muslims could be in upping their dislike of Jews to a level closer to the Muslims. Having a common enemy might be their method to deflect Muslim rage away from them and their type.
Stockholm syndrome. A lot of traditional socialists here are mad on feminism and gay rights. Its my feeling that they align themselves with Islam only because they are frightened of them. Still no excuse though.