@nullagent
Back when I was in high school, and George Bush first started threatening #Iran, I did some research, and my assessment hasn't really changed since then...
A war with Iran would be far more destructive to the US than Iraq and Afghanistan combined, a true "next Vietnam". This is not a situation where you can just go topple some dictator and the people will just fall in line, this is a situation where a series of elected representatives are being at least tangentially supported by a population that is hell-bent on not being conquered by the US or any other "Western" power again.
War with Iran is entirely unnecessary, and in fact, aggressing upon them is what has pushed them away from the reforms of liberal democracy and the potential of being an ally. This could have been solved with diplomacy, peace was so easy, right in front of the people in power, and they have repeatedly chosen conflict for seemingly no reason.