I just started using it a few months ago and most stuff I did was only possible using yaml (templates, custom integrations etc.). I think it depends on your requirements.
Those are not sources, those are only talks and rumors. I've not seen any result of the 100Mrd. yet.
And yes, the NATO would be triggered if they invaded Poland, but shouldn't Germany as a member of NATO be able to help then?
Yes, because it's so easy to murder a few people. We just need to label people we don't like as Nazis and shoot them. What could possibly go wrong? And when we are at it, I think my neighbour is a nazi too, let me shoot him.
I have around 2500 lines of yaml, I think that's relatively much.