[kelnos]

No, you've lost the argument when you've failed to make your point. I don't believe that to be the case here. "Reductio ad Hitlerium" isn't a real logical fallacy, it's just a joke someone made up and we've allowed to perpetuate.

[burgerbrain]

You misunderstand the purpose of logical fallacies. They do not indicate when someone has lost the argument. In fact, the belief that this is the case is itself a logical fallacy.

[kelnos]

So? What does that have to do with what we're actually talking about?