Problem with Russian nukes is not that they are advanced or anything but the simple fact that there are a lot of them. And while current Russian nuclear arsenal is in a way worse than what USSR had in 1980s it is still more than enough to cause extinction of humans.
The world is much closer to a nuclear war than it ever was. USSR had an awful ideology but there were no millions of USSR citizens dreaming about nuking evil enemies. Modern Russia is a very different story. Huge chunk of their population wants to nuke the evil West.
What.
1) Nuclear arsenals are in no way ever close to being able to cause extinction of humans, not even the Cold War ones. They can cause hundreds on millions to die from immediate blast effects, and kill billions by the first year after it due to chain effects, but it won't be able to cause anything like "extinction". Humans are waaaaaay too distributed to be seriously in danger of that. All those rural independent communities in Africa are, for example, probably going to survive without even noticing that anything has happened.
2) Are... are you whitewashing USSR? Do you seriously think that, out of about, what, 200 million people within USSR, not even 1-2% of them dreamed of quickly destroying the evil of capitalism and finally bringing the light of communism over the world? In a state that has literally invented the "Iron Curtain", that had a powerful internal ministry dedicated to suppressing its own population, that had its border guards place main defences
on the inside to shoot the constant stream of defectors... my father served in Border Guard, and during his very short one-ish-year service before he got moved to Afghanistan, he has personally killed one, and participated in elimination of at least two other people who have tried to run away from USSR - and he didn't talk much about that! These defectors were so fucking common that they in the Border Guard even had a professional sleng word to call them, "Yashki"!
Yeah, how about "no". USSR definitely had millions of people who were dreaming about nuking West. A state that supported such cruelties could not have possibly managed to avoid that.