The UN has been serially emasculated by the United States, which mortally undermines it via detestable vetos and by failing to pay its dues, and by the general hegemony of those giant and corrupt nations which regard themselves as "superpowers." The EU may be twenty-eight nations, but the US is one nation almost as big and China is one nation four times as big. And the individual nations of the EU, what's more, enjoy individual sovereignty and nationalistic pride, in the best sense, that helps to retain their individuality. Your blinkers are preventing you from seeing the right targets. Shed your ideology and see the real picture.