After years upon years of conflict, the white race had succeeded. All other races were wiped off the face of the earth, whether through breeding them until any semblance of their previous race in offspring was gone, or through plain old executions. Of course, some missed the niggers and other races. They were very good slaves after all. Which is why androids had been made! Now everyone can have a nigger in their home without having a chance of getting it pregnant!