There is very curious poll at that link you provided, asking “When the time comes, who will you support: Israel or the U.S.?” What is that about? Why would it ever come to that? Does that person think Israel is going to invade?
no
Israel is scheduled to attacked, and its long time ally, the U.S., will not be a major factor in helping with its defense. In other words, they will be standing alone and many in the U.S. have chosen, and will chose to stand behind Israel, rather than the U.S.