Transactionally, I don't think so.

Strategically, we rendered irrelevant hundreds of billions of dollars of Iranian foreign spending worthless for $20bn [1]. We also communicated that we stand by our allies. I don't think that's worth tens of thousands of civilian deaths, but it is an important factor.

(Morally, I don't think an all-out war was necessary to decapitate Hamas--surgical strikes on the leaders, over time, should have been possible without reducing the enclave to rubble. That said, I don't know.)

> We made a lot of advancements in Iraq and Afghanistan too

And then we left. Massive difference between supporting a force and building one.

> Israel (and us, since we are tied together) might face the same unforced error

Possibly. Iran and Saudi Arabia (and to a lesser degree Qatar) have been the regional mischief makers, and they all seem somewhat spent. (Israel didn't create as much disruptive mischief, ironically.) I'm honestly not convinced the Palestinian people want war any more than the Lebanese or, frankly, Iranians.

[1] https://watson.brown.edu/costsofwar/files/cow/imce/papers/20...