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

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. If you don't think it's fair to compare racism and sexism, I suggest reading this Person Paper: http://www.cs.virginia.edu/~evans/cs655/readings/purity.html http://www.cs.virginia.edu/~evans/cs655/readings/purity.html