I don't recognize Irish-Americans, Scottish-Americans, English-Americans, or even... African-Americans. They don't exist. You've got Americans and guests. Does it mean what YOU think it does? Probably not. If you choose to come here then you place this nation above others, otherwise fuck you. Oh you're a black-american? Fuck you too. All I expect... Is America always comes first. The day I decide to raise a family in Africa and call myself an American-African I'll tell you to kiss/kick my ass. If you can't let some shit go you'll never be truly "American".
Let's recap. i said fuck those black people, fuck those white people, and it went unsaid but fuck muslims b/c why not? I give a shit about what a man does. Not what he says. There comes a time when you have to abandon something though and stand for yourself. That's an American. It's a choice that shouldn't be disrespected.
I don't disagree but want to point something out.
Whites are the only ethnicity with a majority support for limited government, every other ethnicity prefers a bloated government.
http://www.pewforum.org/religious-landscape-study/compare/views-about-size-of-government/by/racial-and-ethnic-composition/among/religious-family/nothing-in-particular/
As demographics change to less whites, there'll be less people in america that support a government that is limited in power and authority - In a democracy this means that unless current trends change one way or another (either non-white people start valuing classical libertarian ideals or whites grow in relative size), you'll get a powerful authoritarian government.
We can't say with certainty to what degree it's cultural or biological, but does it even make a difference? They behave similar in the way they change. Both can change drastically after a major event, like losing a war or societal collapse, and both tend to change very slowly otherwise. Biology is changed only within generations, and culture acts very similar, it's slowly changed over generations.
If you were to say that "a true american not only labels himself a simply american but also supports classic american libertarian values", then it would be predominantly whites that are true americans. But that sounds much less political correct then an alternation of "I don't see skin color and pretty much despise everyone equally".