No it isn't. That said, your claim that "European ancestry" is a fundamental test of American-ness is indeed racist. There's no way that Slobodan Milosevic was more "American" than Condi Rice.
As far as your comparison of an African American whose ancestors arrived in colonial times with a recent immigrant from Albania, the American Indian has a greater claim than anyone, Americans of British colonial descent included, to being an American by virtue of his ancestors on this continent for millennia.
Agreed. But you have failed to answer my question. Is white skin really a useful measure of American-ness? You said it was, and I'm challenging you on that.
However, they do not fit the accepted definition of being French, German, or Italian.
Yes but "American" isn't an ethnicity.
Granted, as the result of 19th and early 20th Century immigration, the concept of what was American expanded from more narrowly British and Protestant to more broadly European and Judeo-Christian.
Black people aren't American?
Please read what I said more carefully before you make unjustified accusations. I cited ethnic minorities in three European nations, who may be as loyal to the nation as the majority population, as an analogy to American blacks. A Breton is a Frenchman, but not a archetypal Frenchman. Furthermore, since I identified Ludwig von Mises and Edward Teller, both foreign born, as better Americans than Jane Fonda or Jesse Jackson, of colonial ancestry, should indicate that the crux of "American-ness" (to use your term) is philosophical/ideological and not cultural/racial.
There's no way that Slobodan Milosevic was more "American" than Condi Rice.
An absurd statement, since the former president of Serbia/Yugoslavia has never, to my knowledge, lived in America.
"American" isn't an ethnicity.
Merriam Webster Online defines "ethnic" as "of or relating to large groups of people classed according to common racial, national, tribal, religious, linguistic, or cultural origin or background." Until recently, over 80% of the American population shared European ancestry. Judeo-Christian religion, and the English language. As in my earlier analogy of the Irish-American or Italian-American who returns to the land where his grandparents were born and finds himself regarded as a foreigner, assimilation transforms the descendant of immigrants. That same Irish-American or Italian-American, when traveling in Sweden, Japan, or Ethiopia, is seen simply as an American. At the same time, the input of the immigrants modifies the culture, a point Mencken noted decades ago in The American Language. By the dictionary definition and the attitudes of people of other countries toward American citizens, there is indeed an American ethnicity.
Black people aren't American?
Black people like Walter Williams, Clarence Thomas, and Thomas Sowell are far more American than are leftists, liberals, and psuedo-conservatives of any race who seek to undermine the foundational principles upon which this republic and traditional American civilization rest.