You, and the Trumpkins, greatly underestimate what it is going to take to transform NATO. Donald Trump will be out of office for years, before it takes effect.
Let me put it like this. This will illustrate what I'm talking about.
This is an illustration of some... and not even close to all, the defense Industry consolidation that happened as the Cold War ended. The US ordered it at the so called "Last Supper", because the 1990s budget wouldn't support the sprawling defense industrial complex that grew during the Cold War.
This is also a picture of closed plants, industrial decay, lost jobs, and industry changes. Was it necessary? Absolutely. Was it overkill? To a degree for sure. But at the same time, the rate at which US bought say... submarines, was reduced by 2/3rds in the 1990s compared to the 1990s.
It's also notable how some of these were regional. Raytheon, for example, is one of Massachusetts largest employers and has a long history in my state. But it's enduring success to this day came at the cost of independence of Allied Signal and Hughes Electronics, which thrived elsewhere.
Why is this important? Because this process basically did not happen in Europe. The French jealously guard their defense industrial complex. The British guard theirs. The Germans guard theirs. They all make national versions of similar systems, but at huge cost and limited production numbers, because multi-national programs are few and far between, and when they are launched, are typically designed in such a way that everybody gets a slice of the pie (making it very inefficient).
Basically in the US, for our army, we use two tanks - the M1A1 and the M1A2, with minor variants on both. Europe uses over 30 different tanks. Each Army uses 1 or 2 types of course, but there are 26 armies. Why aren't all European countries using the the German Leopard 2 (the M1's cousin?) which is probably the best tank in the world? Because that would mean putting the French and British tank building factories out of work... and all the jobs that go with it. Their industrial concerns are every bit as legitimate as ours.
So for all the talk about NATO and budgeting... it's fluff. It barely matters. Until we live in a world where the British Army is using German tanks, and the French Navy is using British-Italian-German aircraft, and the German Navy is using British warships, the gross inefficiencies in procurement will continue. And that doesn't even address the huge national redundancies. 26 countries means 26 command staffs, 26 specialized units, 26 sets of equipment... it's ridiculous. That is like going back to the pre-World War I model where every US state had a militia and was responsible for equipping it. There _MUST_ be continent-wide equipping and standardization if the kind of NATO we'd all like to see is to come about.
That's going to take years, not only because of national pride, but because it means that at the other end we'll be able to produce a graph like the one I linked, which means in effect, the end of historic industries in many European countries. Who will be the British MP that votes to close a Shipyard that goes back to the 17th century? That is what NATO reform looks like.
Trump bullying will do nothing to speed that along.
They need our help in doing this painful, shitty thing, not our ire. Because let's be clear: what I'm saying here will destroy people's lives, period. One day an electrician at a Norwegian shipyard will have a 20 year career. The next he'll be unemployed. That is what happened in the US. That is what must happen in Europe. Both continents need a defense industrial base that is efficient... not too big, but not too small. The US's right now is arguably too consolidated. But Europe's is overwhelmingly sprawling and nationalized. And it must change.