Two questions often answer each other.
Everyone in American side seems incompetent (and some of them might be even traitors). C3I system is degraded by something likes sophisticated and complex cyberattack. And in such circumstances Russia, who has quite limited goals - remove America from Europe (and especially from Ukraine) may decide to jump from step 19 at the Herman Kahn's "ladder of escalation" (on which we are now) directly to step 29 (limited attack against population) and, may be, provoke chaos enough to force America to rollback from Europe.
Not at all. First of all, Russian ABD is definitely better. Second - what is use in SBX-1 radar or HEO-SBIRS sats if they are not operational (as now)?
In the case of sophiscated cyberattack with smart damage of, say, coordinate databases, twenty missiles are as useless as two.
Yep. It is barely about strategic choices or military issues. People there barely think, they sense. They cry, sweat, emotionally support each other, and even vomit. "Nuke till they puke". That's the point. Just enjoy the scenes with scared Americans.