Also when the Iranian people overthrowed the shah, I don't remember the US quashing them
No, instead the US, because they couldnt have Iran as its back door colony like rest of ME after said revolution, litterally a year after the overthrowal (1980), encouraged Iraq to invade. FULLY funded its weapon program (nice things like chemicals), trained iraq forces, gave it billions of economic aid throughout, leading to a devastating war on both sides that lasted 8 years.
Nice guys, those americans yeah? Because hey, they didnt try to quash them? They just fed, doped up, potty trained and pushed the attack dog that tried to quash them.
I dont blame you for not realizing the backdoor ways you can have devastating effect (this is type of practice is exactly why Souleimani was assassinated by them, prolly things he honed expertly observing what the americans been doing in the region for 50 odd years), especially when their number one most effective way of shaping the narrative is their almost to perfection level of propoganda. That is not only effective on their own citizens, but the whole world.
P.S If you are curious, I urge you to search this name: Mohammad Mosaddegh . The Iran-Us story didnt start with the revolution.