Then actually look up Godwin's law. It says something about the probability of a Nazi comparison occuring, but nothing about that loosing the argument or ending the conversation. And that's just as well, because why would it be otherwise? Because Godwin said so? What, is he Adolf Hitler or something?
A law and a corollary are still two distinct things. What people like to claim Godwin's law says, it doesn't actually. And that one is just one of many corollaries (not "the corollary") many random people made up because they could, and which I reject because they have no basis in valid reasoning. After all, the only argument here is "someone said that". Why do people who believe nonsense on someone elses say-so object to Nazi comparisons? Well, well ^^
"The Nazis and the Soviets both used intimidation tactics to further their political power". Ohhh...it seems I have lost the argument. Horrible pity, really.