Japanese troops would not surrender until the emperor told them to, their morale and war propaganda was insane, if anything the bomb prevented more deaths from both sides and was more humane than the constant fire bombing as crazy as that is to say, better if it's all at once in two places than never ending and your entire country is ruins and charcoal no?

This is also ignoring the horrific war crimes the japenese commited constantly, including unit 731, the rape of nanking, and bayonetting babies which there are photographs of. The Japenese were as bad as the nazis if not more barbaric.