[anovikov]

Well, in any case, it is a guarantee that Iran will be less of a danger for other nations if the regime falls, and that people inside of the country will suffer - because either pro-Western or any other government is bound to be a lot weaker, and there will be a lot more violence and economic disruption, eventually economic degradation. It should avenge the emigrants, and provide sufficient punishment for those in Iran for enabling this regime in the first place.

Let's not have illusions about it. There is no way to build a sustainable democracy in a country that never had such leanings and is not culturally/religiously predisposed to it, and can't be physically coerced into it with boots on the ground. Achievable goals are punishment, and neutering.