That doesn't work when your opponents pray for death and see martyrdom as victory.
This is genuinely how Shia extremists think. They have nothing to lose and will sacrifice everything and everyone for their cause. They don't care about Iran or Iranians or prosperity of the nation.
Every country that has a opposition diaspora says the same stuff you're saying here. For what is worth, you could be from a family of Savak secret police members.
It is kind of funny, and I am not a muslim, but I am curious enough about history of religion to get absolutely baffled by this demonization of Shia.
Shia is actually way more moderate and compatible with western values. Most terror attacks in the west actually are linked to wahabbism (a more radical sunni variant) than to Shia Islam.
No, he or she is saying that even Americans who have moved overseas could be heard to complain about the "fascist" authoritarians in power in the US now. They would sound functionally identical to an Iranian emigrant talking about Iran; only the details would differ
More to the point. Presume Trump cancelled elections and became a dictator. Then a popular revolt overthrows the MAGA dictatorship, starts persecuting MAGA bureaucrats and leaders. Like in any revolution excesses would happen, the economy would, at least temporarily, take a nose-dive, basic services would stop, and so on.
In such a situation, lots of people would presumably leave the US to form a diaspora. Some of those of course, would have been MAGA people directly culpable in the former illegal power grab by trump.
The Sha was not a loved wise leader, he was also a brutal dictator who directed a Comprador elite at the expense of the majority of the persian people. Some of the Iranian exilees just want to go back to act as colonial administrator for the western world like they did before the revolution.
Even if you consider the Islamic Republic evil, you need to be careful before enthusiastically buying a narrative from one side, because a lot of times politics is just the eternal fight of evil against evil.
It's meant to avoid conflict altogether, say with China and Taiwan.