It will be a heavy lift for the Iranian people to displace the Mullahs. It has been almost 40 years since the Revolution. More than half the population has never known anything but the current regime. The most encouraging sign is the attitude of the young. Iran has been hemorrhaging young people, but even those who have stayed behind, want a more secular society. Trump sent a strong message to the Iranian people. I can assure you that it was received loud and clear.
I think there may be hope for Iran. They were ot always broke and muslim. They had lives under the shah.