On the other hand, they've both killed tens of millions of their own citizens. Each.

And the U.S. killed more people using conventional ordnance in a single night in Tokyo than died in Hiroshima and Nagasaki combined from the atomic bombings, so what is it that you're actually upset about? Because it's obviously not the number of Japanese killed.

I wasn't commenting on total number of people killed by each government. We were talking about nuclear weapons (specifically nuclear subs).

Yes, but you say that as if being killed by a nuclear weapon is somehow more traumatic than being burned alive in a city-sized Holocaust incited by incendiary weaponry. Or even that being blown to bits by conventional weaponry is somehow better.

Think about it: Germany never used nuclear weapons on the U.S.S.R., were they somehow more moble?