Earlier quoted context omitted.
That's a truly realpolitik analysis, but it still may leave Putin in great danger. The US has apparently warned Putin of the retaliation that awaits if he goes nuclear. Sinking the black sea fleet has been mentioned as a possibility. That means that all the sailors on those ships are sitting ducks, to be annihilated in their thousands in seconds, should Putin decide to go nuclear. Surely, even in Russia, the blowback…
First thing to do when threats are made is to decide whether they are credible. The sinking of the Black Sea Fleet would be a huge escalation and a declaration of war, not to mention not a smart thing to announce your plan in advance. To me it's the same as when Russia makes big threats. It's a war of words but with no plan for actual action. Edit: It seems to me that the US are trying to corner Russia into escalatio…
The first two guarantee that any time Russia wants more land she simply needs to first place her finger on a tactical nuke button, and then take the land.
The US hasn’t said it would sink the fleet, retired generals have. Any rational negotiator will keep all options on the table and only limit them when it’s time to act.
The real outcome might well be to not attack in response, which would generate nationalist instincts in Russia and support from the murkier countries of the world. Rather isolate the hell out of Russia, turn off their internet, fling them back to the social Stone Age. Cut roads, rail, sea links. Include Ukraine into Nato asap to prevent any repetition.