And what will we Europeans do if Denmark triggers article 5. A single US carrier group could stop all commercial traffic to Europe and a single USA submarine could keep the parody of navies we have in check.
(b) I'm more optimistic. Indeed, on the scale of https://news.ycombinator.com/item?id=46510437 I'm currently on "practise speaking Cantonese".
Why? Because even if Oceania, Rasia, and Eastasia want to play 1984 sphere of influence games, we can probably position ourselves neutrally, to trade freely with all of them — and whenever one has designs on us, then the other two would naturally be forced to counter.