EDIT: No matter the parallels between the CCP and Nazi Germany, bringing up Nazis will make many think "there's Goodwin's law in action again" and move on. Focus your arguments on the problems, not on making superficial comparisons.
No, it doesn't.
https://news.ycombinator.com/item?id=21289611
The comparison isn't "superficial".
I fail to see how that implies that Godwin's law is dead.
People hold the Nazis up as this great evil that the world banded together to defeat. But from what I can tell the world mostly didn't care until they were directly attacked. Most people truly don't give a crap about this stuff. Never have. Probably never will.
So I guess all those ships and supplies we sent to the UK and France before Japan hit Pearl Harbor were just for shits and giggles, right? What utter and complete nonsense.
Fuck Goodwin's law and any asshole that hides behind it because they're too scared to deal with reality. Might as well ban scientific literature and evidence to prove the Earth is round too. "There they go! Eratosthenes' law in action! They're trying to prove the Earth is round with science!"
https://en.wikipedia.org/wiki/Godwin's_law
But the people refer to his quip are often wrong -- certainly in context of a bona fide totalitarian regime that has been murdering dissidents for 7 decades -- and are using said quip as a cheap way out, while projecting that on those who made the comparison.
"Never again" and "don't even think of comparing anything with the Nazis, not even mass murdering totalitarian regimes" don't go together.