Well, killing all Nazis isn’t genocide, it’s just mass murder.
And it isn’t about a scale of how bad various regimes have been before or since.
And yes, that’s the entire thing. They should have killed every last SS, Gestapo, every brown shirt and soldier, no matter how young. The motivation of the victims of killing every nazi wouldn’t matter because the point is to eradicate every last one of them, and there’s no way to prove they didn’t believe in what they were doing other than their actions. There weren’t very many Schindlers that showed by their actions that they actively resisted from the inside. And if it took their deaths to achieve the goal, then it was a mistake to not do it then.
TBH, despite being against the death penalty for several reasons, I’m worried we might be faced with such a decision again in my lifetime because they didn’t do it then.
Obviously, eradicating the nazis wouldn’t prevent the kind of insanity and hatred that exists as part of the human mind. It would have changed the face of that hatred though, and it would have sent the message that some things will not be forgiven or forgotten. It would have meant less rallying points, less bullshit. And it would have set the precedent that if humans behave like that, they can be put down like a rabid animal to protect the rest of us.
Again, I’m aware of exactly how ugly this opinion is. I do not like looking at the world and thinking that there wasn’t enough death done back then. I do not like looking at the world now and wondering when it is going to happen again. But it’s an ugly fucking world, and they’re coming back. They’re coming back exactly the same way they did before because they were allowed to survive.