No something I welcome, but the calculations you are making don’t match up with reality.
How would you have it? Just let any nuclear armed state invade any country it wants? There has to be a place where the line is drawn.
Russia has agency in this scenario. If they drop nukes first they are starting a nuclear war.
Of course, Putin may have hoped that the Ukrainian public would "see the light" and realize that they are really Russian people (as Putin seems to think they ought to) and align themselves accordingly, but that would have been a pipe dream.
The west doesn’t really hold the cards at the moment.
- If Nato had put a memorandum on Ukraine membership: Russia would have less of a reason to attack but Nato wouldn’t be able to help defend Ukraine in case of an attack
- Nato stays ambivalent about eventual membership: Russia is more likely to attack and, as stated by the Nato general secretary and the US president, Nato won’t help defend Ukraine in case of an attack
I assume you mean "moratorium"?
You claimed that this wasn’t inevitable. From today’s vantage point, it seems pretty clear that this was Putin’s intent all along.