Ah yes, US efforts along with their actions against Venezuela, Lybia, Cambodia, Syria, Vietnam, Irak or North Korea. It totally worked, and those countries were much better than before the bombing!
When you think about it, every country between Pakistan and the mediterranean sea was bombed by the US in the last 30 years. How did it end up?
At some point the people in power very well know what's happening. Bombing schools, bridges, universities and hospitals don't create better regimes.
They just prove that hardliners of the IRGC were right from the start. Moderates have nothing to show, since the Trump admin never wanted to negociate. Yet another massive US self-own.
And I don't see why it is a conspiracy theory. Trump showed with Venezuela that he didn't care at all about democracy. And Israelis don't either. You are the one absorbing the blatant propaganda lies of the Trump administration.
... and then, of course, we switch moral fallacies. The supposed superiority of doing nothing. Hope you never need an ambulance, because of course, clearly, according to your reasoning the moral action would be to let you die.
And btw: your motivation, obviously that you want Iran hardliners to win inside Iran, is showing. Carefully placing the blame for the actions of the hardliners with the US. Needless to say, that is not a moral position at all.
There's many problems. First: every agent with agency is of course responsible for their own actions. Which means Iran's regime, islamists and islamic clergy are despicable monsters because of what they did.
That there is a reason they did what they did does not explain their actions in any moral sense. It makes it worse, of course. It means that they're indeed fully responsible for their actions, that they're not insane, made a choice, and their choice shows them to be truly despicable, immoral and disgusting human beings.