If you mean ethnically - 'they're not African-American,' etc. - you're also wrong. Ever heard 'Irish-American'? 'Italian-American'? 'Greek-American'?
Hyphenated-American is bull crap anyway.
And now let's hear from a former President, noted author, and war hero, a man who won the Nobel Peace Prize when it still meant something, a man immortalized on Mount Rushmore . . .
There is no room in this country for hyphenated Americanism. When I refer to hyphenated Americans, I do not refer to naturalized Americans. Some of the very best Americans I have ever known were naturalized Americans, Americans born abroad. But a hyphenated American is not an American at all. This is just as true of the man who puts "native" before the hyphen as of the man who puts German or Irish or English or French before the hyphen. . . .
The one absolutely certain way of bringing this nation to ruin, of preventing all possibility of its continuing to be a nation at all, would be to permit it to become a tangle of squabbling nationalities, an intricate knot of German-Americans, Irish-Americans, English-Americans, French-Americans, Scandinavian-Americans or Italian-Americans, each preserving its separate nationality, each at heart feeling more sympathy with Europeans of that nationality, than with the other citizens of the American Republic. The men who do not become Americans and nothing else are hyphenated Americans; and there ought to be no room for them in this country. . . . There is no such thing as a hyphenated American who is a good American. . . .
For an American citizen to vote as a German-American, an Irish-American, or an English-American, is to be a traitor to American institutions; and those hyphenated Americans who terrorize American politicians by threats of the foreign vote are engaged in treason to the American Republic.