In the American dream the speakers argument the Americans must come together as equals is supported by ...

i think it is "americans must join together at equals" sorry if it's wrong!

is one of three related ideas. The first is that the history of the United States is inherently different from other countries. In this view, American privileges stem from the emergence of the American Revolution, so that what political scientist Seymour Martin Lipset calls "the first new state" and develops a unique American ideology, "Americanism", based on freedom, equality before the law, individual responsibility, republicanism, representative democracy and laissez-faire economics. This ideology itself is often referred to as "American privilege." Second is the idea that the US has a unique mission to change the world. As Abraham Lincoln said in his Gettysburg speech (1863), Americans have an obligation to ensure, "people's government, by the people, for the people, will not perish from the earth." Third is the understanding that the history and mission of the United States gives an edge over other countries.