In a vacuum, yes.
In the context of that other country killing thousands of your own innocent children on a daily basis, and a few times that of their own in doing so,
failing to stop the war with the new super weapon would be hideously immoral and disgusting.
Baloney. Japan was beaten. The Russians didn’t have that kind of trouble when they began to invade Japan.
Russia didn’t even declare war until after the bomb, and they started on occupied territory, not Japan.
Rightly or wrongly, our best intelligence estimated a bitter defense of the Japanese homeland, by civilians as well a military, largely without military weapons. These folks would have been slaughtered, although they were estimated to end up inflicting a million casualties.
It’s easy to play armchair general a half a century later with information and suppositions that weren’t available at the time.
Was it Dean Achens that made the comment that, hell, yes, it was political: how could anyone look a mother in the eye and tell her that we had the ability to stop the war before her boy died, but we didn’t?
Yes, Japan would have been defeated without the bomb. But looking at the islands that were fought yard by yard, as well as the holdouts
decades later, the suggestion that it would have been fast or easy is pollyanic . . .