Venezuela thought the same thing. Keeping a full-scale deployment at arm's length, and 'only' targeting military targets with exhaustive use of precision missiles is poor strategy, but if a military victory were the US's only ambition the Iranian regime has no capability that could prevent its country from being turned into a smoldering parking lot.

Doctrine isn't the same as inability.

Don’t worry, they can still carpet bomb with high explosive and nuclear always remains an option lest you forget.

In some ways yes, not in others.

That is a remarkably stupid thing to say about the US military.