Just because she is African-American, that is it in a nut shell!
Assuming that is not essentially a joke, I will concede it may be true of a small group of non-AA individuals.
More likely, it is because Stacey is some sort of leftist. ICYMI see, for example, her statement, "We may have to ask folks to turn in their weapons."
IMO, anyone who thinks like that or is comfortable with that view has no idea what America is about.
Yes, libs and celebs have decreed that it’s Stacey’s turn, just like Hillary was already talking about being in the history books.