Stupidly, yes, with carpet bombing. Practically, no, that would be horrible. More horrible, possibly, than taking out the power and water infrastructure.
Carpet bombing didn't even break Vietnam. It didn't break WWII Germany either.
Trump casually talks about destroying the energy infrastructure, power plants, desalination plants etc. This is one of the most controversial things that the Russians do in Ukraine - attack the grid when it's cold to try and freeze people to death. To willingly deprive a country of 100,000,000 people of water and power coming into summer would surely be a war-crime.
: Stupidly, yes, with carpet bombing. Practically, no, that would be horrible.
Could that work? It didn’t end well in Vietnam, which is about a fifth of the land area, and, in 1970, half the current population of Iran.
Also, they’ll pack a bigger punch, but I think the USA has way fewer bombers now.