What people often fail to realize (or at least admit) is there were very few (innocents) in Nazi Germany or Japan. They accepted and in most cases ideologically and materially supported the regimes that sought to commit genocide on many of the peoples of the world.
Keep in mind that those citizens were as programmed as someone who only gets their information from the MSM, without internet access, nor opposition.
Many of the citizens had been raised from childhood to believe what they were doing was a moral right, the destiny of their people, a way to right historical wrongs, and eliminate their longstanding enemies.
To speak out against what was being done would guarantee a 'knock on the door' in the wee hours and was unthinkable.
If that sounds familliar, so be it.
I think we were absolutely justified in dropping the A-bomb, and can figure that though the effects were horrific, anything less would not have been as effective and would have cost many more lives--on both sides.