The only thing really destroyed is the image of the west and particularly it’s leader the US. Whatever you view of Iranian acts, even wars have laws related to portionality that has been broken.
Also if there ever was an ounce of internal resistance then this war have probably galvanized the population and is aligning everyone to common cause of working on the build up of particularly their national security.
Perceptions are fickle, and that includes the local population. There are many cases of countries the US bombed whose population later became strong supporters of the US.