Look at the demographics map, and you'll find out. https://demographics.virginia.edu/DotMap/index.html
Asians live around Asians; blacks live around blacks; Hispanics live around Hispanics; whites tend to live around whites.
In my area this is extremely prevalent and glaring. You go to my neighborhood, that's the Hispanic area. You go across the tracks, that's the black area. You go West Side, that's the Asian/White area, but they are generally segregated, as well.
Yeah, it's technically the United States, but we're divided by nature.
I dunno the term "white America", but I would assume it simply refers to whites in America. Like "black America" would refer to the state of blacks in America. *shrug* For instance, "White America" has a big issue with opiate addiction and suicide. "Black America" has a big issue with homicide and crack. Asian America has a big issue with....uhhhh....I dunno, having too much money or something (lawl)
