re: A daring thought
"What would happen to Israel if the U.S. withdrew all support is best left to the imagination. Peace? Sure. "
Not sure. I would imagine that Israel would ignore the US interests, and focus solely on it's interests. It would probably look for quick solutions and this would probably mean miltary action.
By withdrawing support the US would be sending a strong signal that it was not longer willing to be part of a middle peace process. It would provide the final evidence that the Israeli Hawks were right all along- and support the notion that you can't negotiate with terrorists.