Any race they choose, apparently.
Well, that's exactly the interesting part: if we're talking gender, then you can 'identify' as male, female, trans, questioning, or any of the 50-odd types that facebook allows... that's applauded and celebrated.
So this woman... if she calls herself that (I don't wish to presume)... opts to "identify" as black. But that choice is abhorrent to blacks? Interesting.
By the way, the US Census bureau thinks you can declare whatever race you want.