As this document about strategic bombing in WW 2 points out:
This volume contains an identical reprint of the Summary Reports (Europe and the Pacific) of the strategic bombing surveys... -- p. iii
archive.org
Destroying infrastructure of the sort involved in Iraq and nuclear weapons production is extremely difficult to achieve. It is unlikely the bombing did much more than disrupt the process by some months, maybe a year. The only sure way to keep Iran from making nuclear weapons is to invade, take the country over, and then wipe out in detail the whole of their means to make one. That isn't happening. So, the likelihood is Iran will become a nuclear power. The question then is,
what will they do with nuclear weapons in their possession?