But only Iran?
Shouldn't we attempt regime change in, for example, the US?
It would be great if you could hand us the list of the evil countries that we should invade.
All the ones not currently complying with the will of the greatest nation on earth. Obviously
It's for their own good!
In all seriousness. Perhaps you missed the tone of my previous comment? There is nothing you can do past a certain point other than either embrace the colonial attitude or let the country do its thing. There are no more levers to pull.