Majoritarianism is a traditional political philosophy or agenda that asserts that a majority (sometimes categorized by religion, language, social class, or some other identifying factor) of the population is entitled to a certain degree of primacy in society, and has the right to make decisions that affect the society
This question belongs in a philosophical debate, it is one of those questions that everyone in the world has a slightly different answer to.
The Creation of the United Nations.
Trade. And mostly trade alone they have goods that most of us would be at a lost without