I'm glad you're not in charge of diplomatic relationsthreatening to murder 12 million Russian civilians probably ain't the best idea. And the consensus seems to be that trying to impose a no-fly zone would also likely lead to nuclear war as it would mean the world's two largest air forces going head to head.
This 'NATO can out-nuke them' idea is a funny one. Dr. David Kelly helped expose the Soviet Union's biological weapons programme decades ago; the implication being that bio weapons would be used in conjunction with nuclear weapons to ensure total annihilation. Nobody is winning that fight.
A diplomatic resolution is surely the preferred way to solve this? Western leaders need to handle this one with care.