Unifying, rather than dividing

Victor Davis Hanson writes in Jewish World Review,

...America has survived slavery, civil war, the Japanese-American internment, and Jim Crow—and largely because it has upheld three principles for unifying, rather than dividing, individuals.

The first concerns the Declaration of Independence and the American Constitution, which were unique documents for their time and proved transcendent across time and space. Both documents enshrined the ideal that all people were created equal and were human first, with inalienable rights from God that were protected by government. These founding principles would eventually trump innate tribal biases and prejudices to grant all citizens their basic rights.

Second, given America's two-ocean buffer, the United States could control its own demographic destiny. Americans usually supported liberal immigration policies largely because of the country's ability to monitor the numbers of new arrivals and the melting pot's ability to assimilate, integrate, and intermarry immigrants, who would soon relegate their racial, religious, and ethnic affinities to secondary importance.

Finally, the United States is the most individualistic and capitalistic of the Western democracies. The nation was blessed with robust economic growth, rich natural resources, and plenty of space. It assumed that its limited government and ethos of entrepreneurialism would create enough widespread prosperity and upward mobility that affluence—or at least the shared quest for it—would create a common bond superseding superficial Old World ties based on appearance or creed.

Read more here.