If you’re claiming that Christians account for the vast majority of behavior X, but almost all of your examples of behavior X come from fringe groups most Christians reject, regardless of whether or not you can come up with a technical justification for calling those groups “Christian”, the statistic is misleading.

While I certainly agree that you can’t criticize most Christians for anti-semitism in this day and age, I think you’re leaving out a lot of history that complicates the situation considerably. For 1800 years or so, anti-semitism was the norm in Christianity and not hating Jews would have put one on the “fringe” of the religion. You can find astonishing hatred of the Jews from the most prominent Christian theologians throughout 90% of the time the religion has existed, from the early church fathers to John Chrysostom to, most obviously, Martin Luther, and also to many of our own founding generation. One of the principle complaints of those who opposed the Constitution in America was that the ban on religious tests would allow even a Jew (!) to gain power in this country.

Ironically, like many of the other negative aspects of Christianity through the ages such as acceptance of divine authority, it was contact with enlightenment humanism which resulted in softening and mostly eliminating these vile ideas, though this goes mostly unacknowledged from the Church. It’s really an excellent example of the Hegelian dialectic at work. The Enlightenment was the antithesis of the Christian theocracies that had reigned in Europe for centuries, and in the mixing the synthesis produced was a far more humanistic (and humane) Christianity, for which we should all be thankful. One can only hope that the same thing happens to Islam, and soon.