Bowser, you're making the same error the other side does, and consequently, you wind up arriving at the same wrong conclusions. If you take an objective, even sided-view of the situation, it is possible to see both positions, and the justifications that both sides, rightly or wrongly, use to guide their actions.

The Iranians come from a history of having their government manipulated and overthrown by the US, and a cruel pro-American puppet Shah installed. We have since led a constant diplomatic, economic and political war against them, and supported and lavished military aid on her hostile rivals. Our combat troops are occupying two of her neighbors, we have bases all around her and our fleet is offshore, with major support bases that can keep it there indefinitely. We are conducting (or facilitating) a covert war on Iran right now, one including assasination, sabotage, cyberattack, and our allies have bombed her and her allies. Most important, we have already demonstrated the willingness and capability to misinterpret or fabricate evidence in order to invade and occupy countries in her part of the world who we have declared to be threats to security, and we have the audacity of declaring that other nations are not permitted to acquire nuclear weapons, which we and our allies possess in overwhelming numbers.

Having said that, we have every right to be suspicious of Iran. They are a dictatorship ruled by intolerant religious fanatics capable of cruelly putting down her own people and of menacing her neighbors. They constantly foment trouble in the region, actively or through surrogates, and are almost certainly developing weapons of mass destruction. Most disturbingly, Iran has shown itself to be a country with no respect for diplomatic communication, to the point of violently attacking and occupying embassies and taking hostages. This makes the normal channels nations use for resolving disputes impossible. These madmen now threaten to cut off a trade route upon which the entire world, even countries who have no stake in our quarrel, depends. And worst of all, this isolated, paranoid, country believes it has a messianic, apocalyptic religious role and is on the verge of arming itself with nuclear weapons in order to better fulfill it.

I think we have every right to be on our guard, particularly since we have no reason to believe simply ignoring these people will make them setttle down. There may be places where you can criticize American policy now, and certainly so in the past, but the fact remains the Iranian problem will not just go away, and it is not ALL our fault. We need to be ready to do anything, or we will be forced to do what someone else wants.