Which hostile forces? The US has attacked nuclear sites which they're using to build Nuclear bombs, not sent a warhead into Tehran. I think you're underestimating the dissatisfaction of the Iranian people people with the death cult in charge.
Being attacked boosts domestic support for leadership, even unpopular ones. If Iran actually attacked the US some how, you can bet Trump's approval rating goes up.
Definitely increases the fervor of the hardliners. Do I have a current pole for a good sample of folks in the country l? No. But have a pretty large number of friends who Iranian and also have been there a couple times. Most of the population do not like the government.
