I don't think so . . . I mean, there are always a few 'whatever' to anything, there are some White European decent Americans, I'm sure, who think of America as always and only their land, but that is not the common or widespread disposition of Americans anymore - I think what that idea actually is, is the left's preference for what the right is like. I think it serves the liberals well to (I'm suggesting many here, I am generalizing and certainly not asserting that all liberals . . .) imagine and cast conservatives as narrow-minded racists who dismiss the more indigenous people (Native Americans) and disparage the later immigrants (ethnic minorities), it makes them feel good about themselves, just as casting conservatives as ignorant and fearful buffoons who 'cling to their guns and religion' makes (some) liberals feel good about themselves.
If every conservative around is a little John Wayne, that cartoonish persona is easier for liberals to mock and disregard than say, JFK (who's administration was far more conservative than today's liberals would like to admit) . . . the trouble with that is, if you actually watch those old John Wayne movies, he was nearly always fully behind the cause of the Indians and giving voice to their grievance. Long before today's liberals began patting themselves on the back for 'getting' the wrong American has done, their 'conservatives are simple-minded brutes' poster boy was educating and admonishing us on the mistreatment the Native Americans received from the White man.
I think now, today, everyone easily understands that we cheated the Native Americans, brutalized African slaves, and abused minorities . . . I think that just about only ever comes-up anymore as some try to promote themselves as smarter & bolder & more caring by asserting others just don't 'get' how evil all that historic activity was - it's become a tool to cast yourself (I don't mean you personally, but whoever) as morally superior to those on the political right. It's become a battle cry of 'we're the good guys because we know how wrong we've been and you don't' - except, everybody does know, everybody 'gets' it.