What the US and its allies really want is a weakened, destabilized Iran.
They could pursue regime change and install a Pahlavi-ish government, or they might provoke civil war to balkanize the country, or at the very least, plunge it into decades of prolonged instability. Either scenario serves the interests of Israel, US, Saudi Arabia, and other regional rivals.
However, I don’t see Iranians capitulating like the Iraqis.
By many measures, they are a more educated, proud, patriotic, and culturally resilient nation.