islamic revolution

Either by butterflying the Islamic part of the revolution or by having the theocracy collapse, how could Iran have become a liberal democracy after deposing the Shah?

As tensions between the U.S. and Iran are at an all time high, I have been wondering, how would it be possible for the Iranian (or Islamic) Revolution to be smaller and crushed by the Shah, or even prevented all together? What would be the ramifications of this?

Hi everyone, I'm working on a project and I'm quite curious about Iran. Is there a way to avoid the revolution with a POD on 1960 at least? Not before that year but you are free to use anything after 1960. Thanks!