While I don't disagree with most of what you are saying, and I certainly do not want us get into an all out war with Iran, don't put too much 'belief' in Iran's military power. I agree about he kamakazi drones though. This they would do a thousand fold.
As for the other Muslim nations, IDGAF what they think of us or if they like us. My Ex-Perisan wife said it best: 'They like being ruled with an iron fist....it is what they know.'
The problems is there are enough muslims already in and more keep coming in. Did you see the video in Australia they are shouting "gas the jews" and that is with just 3% of their population being muslims. We have no idea who among those 20k people that came from afghanistan, Iraq, Syria, Pakistan etc in via the southern border are would be terrorist.
Muslims in Muslim majority countries absolutely hate us but once a while it triggers them during wars, which is when we see attacks in western nations. Remember the Boston Marathon bombers they came to the US from Chechnya, Russia on a Asylum Visa.
As far as Iran military capability they don't have air or sea power. They have lots of ballistic missiles, they will take out the middle eastern refineries. In 2018 they attacked Saudi Armco refinery which was under US protection. Far all we know they may already have a nuke, its been years since any UN inspectors visited them.