This is how nations destabilize. States perpetuate themselves through maintaining the exclusive monopoly on violence and using that monopoly to secure certain guarantees for or against its people. The Roman empire saw a similar decline of administrative willpower and rises in both vigilantism and shitty little civil wars between the wealthy elite who really ran the show (spoiler alert). I’m convinced that Balkanization of the US is, at this point, inevitable. I’m not saying that’s necessarily a good or bad thing in its own right. On one hand, it might be better for both the states and the world if we went to more of an EU type structure. On the other hand, a nuclear armed independent Texas.
I don’t know that I’d agree that the EU and the articles of confederation are comparable. There were a few big differences, including states printing their own currency without a common exchange medium (as opposed to the Euro), and that the mechanism for funding the federal government was (IIRC) entirely voluntary. States could just choose to not send money without consequences, and most or all made the obvious choice of not funding the federal government. The articles of confederation also had a few things about it that were more progressive than the constitution; for example, if I’m remembering right, it offered automatic citizenship to all native Americans, which pissed a lot of the farmer-settlers right off.