Israel would destory Iran in a nuclear or conventional armed conflict, they are a democratic (somewhat) capitalist society and thus have a strong military. Israel doesn’t need our help or support to take on Iran and Iran, having a mind of self preservation, doubt would risk any sort of open war.
The radical Muslim leadership of Iran does not care about self-preservation. That is the problem. Ron Paul has indicated that it is none of our business if Iran has a nuke. I want a Reagan as commander in chief, not a Paul. If Israel is left to defend itself, it may be forced to use a nuke to defend itself. If so, there goes Middle East oil. No one will save the economy at that point.
We can respectfully disagree and we won’t change each others mind. That’s okay.