Just because there is something that exist in the world doesn't mean that it belongs in the schools. If they choose to live their lives that way then good for them but, no need to force their views on other people or on our children for that matter. I do believe in tolerance however, where will the line be drawn? Will they start teaching the history of religion in America - all the great people in history that happen to be Christian/Muslim/Buddhist etc.. Why not incorporate everything then?