While he does bear some responsibility for the bomb, it's absurd to call him "one of history's greatest villains" or any sort of war criminal. The primary respo

While he does bear some responsibility for the bomb, it's absurd to call him "one of history's greatest villains" or any sort of war criminal. The primary responsibility lies on the military and political leaders who made the decision to use it. Oppenheimer was a scientist who felt obligated to work on the bomb in case the other side got there first, and once it was developed, spent the rest of his life working to limit nuclear weapon use. He was painted as a Communist sympathiser and publicly humiliated over this, as the book "American Prometheus" details at length.