I understand the desire to end that murderous regime. If I were Iranian, I'd want to see it ended too. But do they really think bombs will achieve that? More importantly, would more bombing actually bring the regime down?

Regimes rarely fall because civilians are reduced to searching for food and water. Destroying Iran's infrastructure would be more likely to produce desperation and disorder than revolt. It would hurt the weakest most, not those closest to the regime and best positioned to shield themselves from scarcity.

If outsiders want to help bring the regime down, supporting opposition forces would at least make more sense than bombing civilians into misery.

This is where not betraying the Kurds (several times) would have come in handy...