Various races, cultures, and religions become one culture of many backgrounds in our melting pot, as we know from the translation to "from many, one" - e pluribus unum - also described by the Wizard of Oz when bestowing the Th. D upon the Scarecrow, as was the authority vested in the Wizard by the Universitatus Committeatum E Pluribus Unum.
These high honors, coupled with an honorary diploma from golden oldies school are the reason we do not get confused between ethnicity and culture. This of course makes us smarter than even the press, on top of the common sense that we have anyway.