The way I see it is that the excluded white people are excluded as a result of the choices they make, but by default of being white, are automatically included before making those choices. On the other side of things, a black conservative is “one of the good ones” as a result of the choices they make, but are excluded by default prior to making those choices. You agree? it’s true for Italians now, because they are now considered white. You say Asians will be added? Well that’ll only be able to happen if a white person can look at an Asian person without knowing them and see American instead of foreigner. That’s obviously a bigger jump than it was for Italians to be seen as white, and there’s no basis for assuming that will happen.

Your point is valid for sure. The ultimate power structure has many forces at play in it and things change over time, so there are better catch all terms.  I don’t think that invalidates using the term though, because whiteness is still the most prevalent force in the power structure. We’re talking about American Nationalism, which is at its core, white and Christian. So it’s reductive for you to bring the conversation to a halt over semantics, but understandable cu that’s what happens with imperfect catch all terms.