It's interesting that that is the majority position in the USA, I guess because there are so many jews living there. In Britain you'd find a far more equal split, with many people uncomfortable with the inequitable way Israel was founded and particularly uncomfortable with its subsequent behavior towards "ethnic minorities", whether within its borders or without.
I do think we have to be pragmatic though, and look at ways of resolving what is undeniably a real and deeply-felt conflict which threatens the entire world. I do think intransigent Israeli attitudes have occasioned quite a lot of the extremism we now experience - how much Muslim extremism was there before Israel was founded?
The one thing that is certain is that military action (whether directly by the USA or by Israel using USA-supplied arms) will NOT solve the problem, but rather by hardening attitudes will make it worse. I thought Vietnam/Cambodia etc would have amply demonstrated that there is no prospect of defeating guerrilla action supported by the local population by using brute force? Just as I am confident that the US-led occupations of Afghanistan and Iraq will end in failure, and much bloodshed.