“Iranians have agency” is a crappy argument to excuse American meddling and overthrow of democratic societies. That gives the US a blank check to do whatever they please and later blame the victim for the outcome.

A revolution is not about agency. You make a mockery of the whole idea. Agency implies what the majority wants. That is what they had with democracy which the US ruined. They took away Iranian agency. The revolution later happening is not a good example of agency. A revolution rarely express the popular will. Instead it gives power to those people most capable of using violence.

Democratically inclined and freedom loving humanitarians will frequently lose in a civil war as they lack the violent behavior to win.