If one agrees with the principle stated in the Universal Declaration of Human Rights that "the will of the people shall be the basis of the authority of government," then one might also agree that the will of the people as expressed through a global referendum shall be the highest expression of political power on the planet.
One might also then like The Idea of ratifying the Universal Declaration of Human Rights and the Earth Charter through a global referendum, to give the principles of those documents the force of supreme law for humanity.
The best way to protect anyone's rights is for everyone's rights to be protected.
Every person who is alive today is a citizen of planet Earth. Every citizen has the right to participate in a global referendum.
After an extended period of time for preparation and deliberation, the referendum could be held with paper ballots, and with live streaming video from the millions of locations at which voting takes place to make sure there is no intimidation or fraud.
Everywhere. The rulers of any country who try to stand in the way of their people participating will lose any shred of legitimacy.
When enough people like The Idea, it will happen.
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Some people may say that it has already happened. According to the article about the Universal Declaration of Human Rights at Wikipedia, "The International Bill of Human Rights consists of the Universal Declaration of Human Rights, the International Covenant on Economic, Social and Cultural Rights, and the International Covenant on Civil and Political Rights. In 1966, the General Assembly adopted the two detailed Covenants, which complete the International Bill of Human Rights. In 1976, after the Covenants had been ratified by a sufficient number of individual nations, the Bill took on the force of international law."
What this really illustrates is how inadequate the United Nations and current enforcement of international law are. They are about as ineffective as the United States was prior to the writing of the Constitution, when it was governed under the Articles of Confederation.
What is needed is something that would be incontestably the highest political power on the planet, the will of the people as expressed through a global referendum. That is The Idea.
A companion website, Global Referendum 2020, has been created to expand The Idea.