Bombing civilian infrastructure never works like this. As we saw in The Blitz (and in Vietnam, and in Ukraine), it just draws the bombed together, unifying them and hardening their resolve.
Can you use an example that doesn't prove the exact opposite?
Bombing absolutely worked in Vietnam so much that the south didn't actually lose the war until 2 years after the USA left. The war becoming a political nightmare is why the USA left not because the horrendously effective bombing stopped working.
Ukraine is really weird to put in here because Russia has fail to establish any effective air superiority so I can't make heads or tails why you put it in here.
As for the Blitz is was absolutely effective vs the British but USA factories and supply shipments were largely out of reach of the Axis.
Add in the fact that the people of Iran are largely opposed to being governed by a Muslim theocracy (most of the population is not Muslim) I'm frankly struggling to see how you get any of your viewpoints.
If you ignore Japan and Germany, this is absolutely true.