American must be understood as its own ethnos. You’re not a mutt, you’re not English-Irish-French-Italian-Polish-Scottish-German because you’ve got fractions and percents of each. You belong to your own ethnic group unique to this continent distinct from all others. Theodore Roosevelt understood this well.
“The children and grandchildren of the men who came here from England, Ireland, Germany, France, Scandinavia, and the rest of Europe have become Americans—a new race, with a new ethnic type, and they are no more Englishmen or Germans or Scandinavians than the descendants of the Norman invaders of England are Frenchmen.
The frontier conditions made a new race. The stern struggle with the wilderness and with wild men welded together the descendants of many European stocks into one people—the American. Out of the crucible of the wilderness came a new ethnic type, hardy, self-reliant, democratic in instinct, and with a continent for its inheritance.”