If there was a "total war" America would not exist anymore.
Not sure how you think you could pull that off, but whatever.
We sink your carriers, then we siege your cities.
Again...exactly how do you plan to accomplish this? It's not like Iran hasn't been firing missiles at our carriers this whole time. Yeah, it's a halfhearted effort by the Iranians, but what exactly do you think would happen to Iran if you managed to even damage one of our carriers, much less sink one? I can describe it thusly: the American gloves would come off. Iran would be plastered into oblivion via conventional bombardment, and there's very little Iran could do to stop it. Sure, we'd take losses, but the Iranian regime would cease to exist in totality. America has had this option available to it since day one. We haven't exercised it. Not because we couldn't do it but because we chose not to. Do not mistake restraint for a lack of capability.