I don't think they are. I think there's a lot of Christian support going to Israel, given that its opponents continue to purposefully target innocent men, women and children for extermination.
The main reason I have supported Israel is because of the book "Exodus" by Leon Uris and the holocaust. Later I was exposed to Christian bible prophecy concerning the Jews and that made me want to back them all the more, naturally.
Of late I've had to ask myself if I am being totally objective to side unequivocally with the Jews. They aren't always in the right. Usually they are, but there have been incidents where they went too far imo, assuming you can get the whole truth from either side.