What you are missing is that this thing can get out of control. In 1979 the mullahs hijacked the Iranian Revolution. Something similar could happen this time as you unleash the anti-government forces. No one knows where this will all lead. Plenty of unintended consequences possible.
In 1979 the mullahs hijacked the Iranian Revolution.
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Different times. Different technologies. I am certainly no expert, but, based on what I have read, it seems that there is a huge segment of the population that is young, hip, pro-West, and itching to get out from the oppression of the ayatollahs. Plus they have technology that allows them to connect with the outside world, so that they know the truth about the Great Satan and not what they are told at the mosque.
My money is on the Persian spirit. Rise up, Persians! Be free!