Why was Sandrine disappointed?

I'm not sure that my page numbers match yours. When Robert asks about racism, Sandrine says in the future everyone will be the same shade of brown and all speak Esperanto. Pascale disagrees, and goes on a long monologue about how she is proud of her Haitian heritage and the uniqueness she feels; she is irritated by how white people assume everyone wants to be white, and how they group people according to ethnic stereotypes, which enables people to judge individuals not based on who they are but who they appear to be. Dave mocks what she says while he gropes and tickles Nancy. Robert announces that it’s time for bed, and is firm about separating the girls’ and boys’ dormitories. Dave says right, they wouldn’t want to “shock the little imports,” but he says to My-Lan that one of these days he’s going to have to loosen her up a bit.