Saying that every single Nazi should have been killed is.
Every nazi party member, every soldier, every sympathizer, everywhere in the world.
That would have included Nazi supporters in the US, all the nazi scientists that got a clean slate by agreeing to work for the allies after the war, every single member of their armed forces from the top to the bottom, and every civilian that worked for them voluntarily. That’s the only way to come close to eradicating something like what the Nazi are. You can’t let a single one survive to pass on their beliefs, so you end up killing people that didn’t believe in it as a side effect.