The US is the worlds police force, of course it's us. If the US pulled out all military from around the world, what do you think would happen?
FWIW, I'd like to see us do that, bring our boys home and FTW, let you guys figure it out.
Two problems: nukes and oil / natural gas. If we can switch to nuclear power (and renewables where possible) and for a large part we can get rid of our dependence on the persian gulf and its problematic countries that would help a lot. Then they can go fuck themselves, it's a shithole region.
Irans endless support of terror groups is malevolent, but manageable. With some help Israel can hit Iran where it hurts. As usual the raunchy EU and the arab states do zero.
Iran (and possible hezbollah, houthi, hamas etc) with nukes is highly problematic. But should that take such a large, long and costly military operation? The focus on "regime change" is tricky. If that does not happen is there an exit strategy?
The focus on destroying Iran's nuclear weapon programms is much easier and "mission accomplished" can be achieved relatively quickly.
Although the mentally ill ayatollahs will restart their nuke ambitions immediately