Agree on all counts. Save for the three races. Classical ethnology usually holds just three races: Caucasian, Negroid & Asian (some argue that Aboriginal Australians constitute a valid fourth race). Of course that doesn't stop people from arbitrarily dividing others into racial categories—one of the strangest was in an LA Weekly elegy after Lucille Ball's death, where the author suggested she had done a great deal for race relations because I Love Lucy had portrayed Ricki Ricardo as a real man & not a caricature. Desi Arnav was a different race? I remember thinking.
Jews, especially via the entertainment industry, have worked to be identified as ordinary white Americans. Agree or disagree I think Whoopi's comments reflected the success of that.