I'm completely OK with a predominately female group being told men would be there serving drinks? African americans serving racists? That's a totally different ballgame.
OK, so how about blacks serving a predominantly white group? I think my other race metaphor went too far, but this one works. There's nothing wrong with a black person working as a server/waiter. They're still considered by most people to be completely equal, and blacks are welcome to participate in the event alongside whites, it just so happens that their drinks will be brought by blacks.
