"Normal Iranian people despise their theocratic "leadership". Those 1 million Iranian troops will be no match for the 50 million Iranians standing up to them. You can already start to see it in places where the regular people have taken over police stations and begun to arm themselves for what's coming."
I think you misunderstand the amount of support the mullah's have, and the nature of the support.
In Iraq Saddam Hussein was supported by a political party. The members of his part liked him, but he represented a regime and a source of power. The supporters of Khamenei also probably view it that way. In his immediate circle. But beyond that he represents Islam itself to a substantial portion of the masses.
While the city folk have grown tired of the regime, and want to go back to living a more Western lifestyle like they heard Iran had in the 1970s, the country folk are often bound to a strong tradition of supporting the mullahs, and listening to them and "imitating" then as their religion teaches them to.
Just like there are many ignorant people in other countries that support crazy regimes (some argue the US is one of these countries), there are many ignorant people that will support the mullah's.
The entrenchment of the mullah's didn't start in the 1970s.. it has a very long history. 1979 was only a culmination of that.
So yes. Many of the 50 million are tired and hate the regime. But a strong segment of the populace considers it their absolute religious duty to support the mullahs. These segments of the population have often risen up themselves and taken matters into their own hands when someone was deemed an "enemy of Islam" (their version of it). The fanaticism runs deep in them.
This isn't going away with a few bombs.
A more realistic way this would play out is if some military commander took charge (like Reza Shah did in 1925) and forcibly Westernized the country imposing strong limitations on the mullah's and punishing any that openly oppose.
But it's unclear if such a dictator exists today. And surely that would bring about new problems.
I hope I'm wrong and the IRGC, and the Basij, and the army, and the whole religious establishment's strong grip on the government can be weakened. But the situation doesn't seem that way right now.