I think Jeff is right on in this:
But the official party line of the United Nations is — must be — that the right to vote is circumstantial at best. Because the United Nations welcomes member states that recognize no such right. The official position of the government of Syria, just to name one example, is that the people have the right to vote only for candidates that have been approved by the sitting government. The people of Syria, according to their government, have no right to remove the Baath Party from power and replace it with another group of leaders. The Syrian government denies that that right — which we as Americans believe is unalienable — exists.
And yet Syria is a full member of the United Nations and enjoys all the privileges thereof.
It is for reasons such as this that many give the UN no authority, moral or other. If you really want to be frightened, pick up this book: The UN Gang: A memoir of Inccompetence, Corruption, Espionage, Anti-Semitism and Islamic Extremism at the UN Secretariat.