What you have just described to me: NATO is the thin line that keeps Europe from forming a massive, continent wide military power and Empire that will make the USA its enemy. So keep your friends close, and your enemies closer? That’s the purpose of NATO????
Actually, this isn’t really about NATO, which has been an arm of the EU since the 90s thanks to Clinton. It’s about the EU’s long-standing agenda, which they even tried to put into play when NATO was doing what it was formed to do.
Socialists play the long game, because they believe Marx to be a prophet and their victory to be inevitable. They are shutting Britain out at a moment they feel that their time has come, therefore.