I think you're missing the point, which is that by declaring this the "Black National Anthem", and worse, having it performed at a game, is utterly racist and divisive.
Perhaps we should rebrand the Star Spangled Banner as the "White" National Anthem, and see how that goes. Maybe we can add "La Bamba" as the "Brown" National Anthem, and "Tiánmì mì" as the "Yellow" National Anthem.
I mean, as long as we're going to have separate anthems for "black" people, it would only be fair to have one for every other "color" too, no?
“ Maybe we can add “La Bamba” as the “Brown” National Anthem, “
Now there’s a song we can have fun with! Lol