Given how bad the US military performed against Iran, its pretty clear that any hostilities started by the US against NATO, would finish with a takeover of Washington within...2 weeks...
Even if that fantasy was true in any way, the US can do enough damage to European digital systems to utterly cripple society on day 1.
What makes you say that?
Where does this weird expectation come from that you can basically achieve your goals in a 2 week air campaign?
If the US wanted to they could probably do a lot of damage but, as you can see in Ukraine, taking over a country is a whole different thing. Unless you're willing to go in with the army and are willing to lose a LOT of people. And even then it'll take months or years for a single country