Calling someone foolish prior to understanding their point of view seems unnecessarily narrow-minded.

I do agree that they certainly weren't objectively evil but their actions should be condemned. We do need to learn from our historical mistakes and learn from them. The US bombing of Japan in WWII is often justified by the potential for saving lives. In reality all we did was vaporize two civilian targets with our brand new toys. It's possible it did save lives. It's also possible that it did not.