With the melting pot, we can recognize the varied flavors, which blend to make the rich hearty American stew. Multiculturalism is more akin to the child complaining about different foods touching each other on their plate.
Ethnicity is different than nationality. Scots-Irish is generally not stated as Scots-Irish-American, as the American part is assumed.
Had a female ancestor named Golightly.
More of the tomato soup type (although immigrants bring trappings of their old cultures, there is a base stock which remains, the tomato, or core American culture, largely, but not exactly, English).