Earlier quoted context omitted.
Because NATO is not raring for nuclear armadeggon?
If responding to this would mean nuclear armageddon, then what is Russia doing by attacking NATO in this way? Rolling over beacuse somebody is a nuclear power only seems to come up when Russia is in the chat. If China or Israel attacks someone, nobody says "we can't respond to it because it would start a nuclear war." What is it about Russia that makes Russia so irresponsible? And if it is, isn't it time to completel…
Note that there's a difference between talk and action. The West likes to talk about holding Russia accountable, and making a show of it with token sanctions. But when even those token sanctions are routinely skirted by Western companies operating through intermediaries in third countries while Western governments look the other way, Russia knows that all this talk doesn't matter and can be ignored.
It also doesn't help that talking about what needs to be done to be able to reliably push back - i.e. more defense spending, more investment into military infrastructure and manufacturing, helping your allies etc - gets politicians voted out of office in so many Western countries these days.