That is one of the lefts arguments, we shouldn't take sides but be an honest broker. The fight against terrorism could be fought with the help of most Arab nations if we stopped supporting Israel because they see us as an enemy because we do support Israel.
To put it this way, if we stopped all support for Israel and let happen whatever happens in return for full support by Arabs in defeating all groups hostile to the US do you think they would agree?
I'm concerned about the ones who want to destroy us. Since there appears to be significant overlap between them and the ones who want to destroy Israel, I think it's in our interests to support Israel for the time being.
To put it this way, if we stopped all support for Israel and let happen whatever happens in return for full support by Arabs in defeating all groups hostile to the US do you think they would agree?
Even if they did promise such a thing, would anyone with a shred of common sense believe them?
Like I said, I think we should should support Israel as long as it's in our interests to do so. And only as long as it's in our interests to do so, because I'm not about to write the Israelis a blank check that says we'll always and forever support them no matter what. Sorry, I just can't support such a thing - I put American interests ahead of Israeli interests, and if the two should be in conflict someday, I'll support America over Israel. For what it's worth, I wouldn't expect the Israelis to write us a blank check either, and I would expect that they will pursue their own interests, even when those interests conflict with American interests. That's what nations are for, after all.