Have you ever visited the EU? Let me help you with the positives: common market, freedom of movement, rule of law, clean and beautiful cities and towns.
Also, war is costly—so is preparedness. Sometimes you don’t have a choice, e.g. you have a strong polity neighboring you that insists your are by gods grace their zone of influence.
I’m sad about nuclear to, but that’s on a culture in specific countries; not on Brussels.
Also, there’s heaps of mistakes in the regulations they churn, but that’s another story.