Nah the UN does what it should, prevents world wars and nuclear holocaust by keeping superpowers talking in an open forum. That's kind of the only point of it, not to be some kind of world government.

> The United Nations, referred to informally as the UN, is an intergovernmental organization whose stated purposes are to maintain international peace and security, develop friendly relations among nations, achieve international cooperation, and serve as a centre for harmonizing the actions of nations.