Good responses. Truth in all of them, I think. One thing nobody mentioned was that jews dominate america. We've basically been "conquered" by them. They seem to "make the rules." And they are our enemies. So, it would seem to me, that there is some temptation to collaborate or even begin to identify with our conquerers, because it makes us feel like we're in control. Call it "stockholm syndrome" if you want, but I think it is as old as the hills and I definitely do not think modern psychology invented the concept. It could simply be motivated by a right desire to mend the humiliation of defeat, fear of what's to come and the guilt for having let it happen, but an obstacle to accepting the right way to do that. In other words, if you won't live life on God's terms, then you find some other way and right now, catholic-zionism and/or hyphenated-zionism seems to be getting lots of promotion.
Based on this idea, I'd expect to see growth of "islamo-zionism," in the future. Particularly in europe and great britain.
This article and video show a muslim-zionist and a christian-zionist asserting that, "anti-zionism = anti-semitism." Of course, that isn't true. Catholics cannot reject jews based on their race, they reject them based on their beliefs and of course, accept them when they become catholics. So, there is no anti-semitism in catholicism, but catholicism is anti-zionist (as I understand it, we believe ourselves to be God's chosen people and believe the jews to be the opposite). Jews are rejected by God, because they rejected him and Catholics are accepted by God, because they accepted him. There's nothing racial about that. It is religious.
As far as islam being anti-semitic, it seems to embrace all the races of the world. So, even from islam, anti-zionism seems to have nothing to do with anti-semitism. I just don't think jews get much discrimination based on their genetics; I think it is their religious identification, even if they are "jewish-existentialists." http://www.israelnationalnews.com/News/News.aspx/168638#.UeRdsEajHiF