Are we one united people? No

“Do we still meet in any way the designation and description of us as the "one united people" that John Jay rendered in The Federalist Papers: Providence has been pleased to give this one connected country to one united people — a people descended from the same ancestors, speaking the same language, professing the same religion, attached to the same principles of government, very similar in their manners and customs." (Patrick J. Buchanan)

Multi-ethnic societies are a zero sum game where the gain of one ethnic group is offset by the loss of another ethnic group, with much cruel social discord in the process. Reason and common sense suggest that real human nature, which remains ethnocentric and kin-centered, leads naturally to regionalism, localism, and eventually to an ethnopluralism of ethnostates. Decentralization into small separate ethnostates, with their independence protected by a defensive federalism is the best political and moral solution to this serious political problem of being ununited. 

An ethnopluralism of ethnostates could be established in America largely within the traditional American cultural framework of our separation of powers and states. We need to honor the biological origin of social behavior and advocate the creation of ethnostates for all groups, black, white, brown, yellow, or red. That is political morality in harmony with real human nature and human nature in harmony with political morality.