Hiroshima wasn't instrumental in making military armaments. It was, sadly, the seat of Christianity for Japan, for what existed.
Nagasaki did help produce such things.
I would have targeted major military targets at Nagasaki and Tokyo, and tried to make sure the Emperor was not hit.
However, the range of our bombers was always a dire concern and I doubt we could have successfully reached many appropriate areas.
This is what I understand from my knowledge.
Finally, when an entity first offensively, physically, targets you, why should any response restrict the offenders’ most supportive nonmilitary citizens? This may not include kids, but it is difficult to exclude them.
I need to correct my prior post. It was Nagasaki that was the seat, followed by Hiroshima. So I would rather have limited Christian deaths in whatever way possible.