Well, Russia started a war on their border. Blow back was going to happen.
Same with nuclear war. Once the rest of Europe and the US decided to not let Ukraine go it alone, Russia was going to go nuclear.
But the calculation was Russia will not stop until they get the old borders back. The EU was not going to allow that to happen.
If you are good with the actions of the Biden admin, you are on the wrong site.
They probably would have stopped when the Russian-speaking areas close to Russia were traded back to Russia for whatever we want from them.
It’s probably too late for that now.
I know it also had to do with our missile-launching capability.
Everything could have been solved and bargained with the right leadership but forget about that now. I believe the left really wants a nuclear war. They think they will come out ahead.