The whole tale of the 1953 supposed US "coup" has been started and amplified by Soviet propaganda, then taken up by the Islamists and their wilful servants, as we can see here. The coup was Mosaddegh's; the Shah prevented it. Read some real history.

As for "freeing" themselves in 1979... please talk to some actual Iranians and ask them how much of their country's resources are actually benefitting them, instead of going to regional terror proxies and into enriching corrupt Mullahs so that their sons and daughters could go live in luxury in the West they so despise. Ask them, too, how "free" they really feel.