The Constitution sets up the United States as a republic, not a democracy.
The key difference between a democracy and a republic lies in the limits placed on government by the law, which has implications on minority rights. Both forms of government tend to use a representational system where citizens vote to elect politicians to represent their interests and form the government. However, in a republic, a constitution or charter of rights protects certain inalienable rights that cannot be taken away by the government, even if it has been elected by a majority of voters. In a “pure” democracy, the majority is not restrained and can impose its will on the minority.
The following videos give you a big-picture vision of why we used to enjoy so much personal freedom and prosperity in America. They include why it was possible, and explain in a simple fashion the different systems of government throughout the world and the different economic principles underlying each type of government — illustrating the great virtues of our unique nation and how it has become yet another Oligarchy.