I’ve put some thought into it. What’s in it fir them except negatives?
Putin has said that nuclear weapons would be used to defend the homeland if in jeopardy. No one in their right might would try it.
I simply do not agree that a nuclear power, especially with their background from WWII at the least, would let us bomb Moscow and not go nuclear.
Again, if Russia was bombing DC or LA or NY, whether by proxy or not, we would be guaranteed to attack.
And one other thing not often discussed, but well known in nuclear escalation gaming is that conventional attacks are also a nuclear threat.
Say we saw a Russian missile, launched from Venezuela or Cuba, headed straight for DC. and somehow we believed it was conventional. Say we accept the hits or try to shoot it down or whatever. Say it keeps happening.
The Russians are smart enough, and Putin even directly said, that normalizing the idea that we will pound Moscow with conventional weapons is a bad idea. It essentially acclimatizes you to not worry about the incoming.... and THAT is when you are incredibly vulnerable to a surprise first strike.
So if the US, starts sending hundreds or thousands of warheads into Moscow, they know that on any given day, it might be a nuclear attack after they were lulled into complacency.