Russia will not use nukes. If you believe they will, then they have you exactly where they want you to be.

Eh, MAD brings us back to equilibrium. It's a significantly more dangerous equilibrium, for sure, but we should be much more afraid of a nuclear accident (not reactor meltdowns but accidental weapon launch) than of purposeful use of a nuclear weapon.

Neither is now the situation exactly that having nukes, means you can tell everyone to back down and do exactly as you say or else.