Were the four hundred thousand that survived heros or demons? I can't make that judgement. The survival instinct of humans is the basic instinct. That is the last thing that goes before death.
I worked with a number of japs about 12 years ago on a vehicle launch at Ford Motor. The managers were abusive, arrogant and aloof, just like the japanese offices of WWII. They loved it when the young American engineers would call them san and bow to them. I wasn't saning and bowing for a minute. The one jap manager that deigned to speak to me did so in a loud and abusive manner. I responded in kind and advised him that I hadn't forgotten about Pearl Harbor. He worked hard to try to be my friend after that, which wasn't going to happen.
Last year wife and I went to Oahu on vacation. In the evening we'd stroll Waikiki Blvd. and encounter a number of japs. The men made no effort to make way on the sidewalk and I finally had enough of my wife being bumped. It was a lot of fun throwing the shoulder into them to clear the way for my wife. They are still arrogant. Had they won WWII, I'm sure our country wouldn't have been rebuilt. Screw them!