The rhetoric of the Islamic Republic identifies the 1956 coup as among the paramount grievances against the US. It therefore carries elevated importance from a standpoint of understanding seriously the Islamic Revolution.
Generally, you seem not to be understanding that the current political configuration in Iran has specific historical antecedents that are vastly more nuanced and and expansive simply than the observation that Islam is the dominant religion of the region.
I suggest you try learning to apply a critical historical lens, freed from a preconception that Islam is more relevant to various events than all other possible antecedents. You can understand the complex politics of any particular Muslim-majority society without being an apologist for Islam.

Additionally, mental hospitals are overused.
When someone has a crisis, instead of a receiving a meaningful intervention at the source of the crisis, they often will simply be locked in a hospital and forced to take drugs, offered no other support. They can stay confined as long as an accountable judgment is maintained that they are not adequately stable, and have essentially no rights in the interim. The whole system is farcical.