Again, you're taking a subset of the population that jumped off in one island. It's like looking at the Reagan era and extrapolating that the US has always pursued a supply-side economy (it hasn't, look at the New Deal and modern stimulus). I never said that civilians would be completely out of it, but the scale of civilian participation would be negligible compared to the numbers of dead due to the nukes. As I have said before, the Emperor would have surrendered if the nukes had not been used because the nukes themselves weren't the cause of his surrender. He surrendered because it became clear to him that the destructive potential of the United States had increased to such an extent that resistance was futile. He would have likely come to the same conclusion if the bombs had been dropped, like I said, on Mount Fuji or another recognizable landmark that had plenty of witnesses around to confirm that it was, in fact, a nuke that had done it. Furthermore, Japan hadn't been invaded in centuries, and the psychological blow of foreign boots on Japanese soil would have been devastating. Though the nukes were successful, they were not the best solution by far; in order, the best solutions would be: Nuke Mount Fuji, nuke right near Hiroshima, invade and take Tokyo via blitzkrieg, blockade until they sue for peace, nuke Hiroshima.
The fact that the enemy killed lots of civilians and no longer posed a threat to your civilians does not entitle you to kill lots of their civilians. The idea was to end the war cleanly, not make it worse.
-Penguin