Sending child rapists to prisons is perfect when it comes to fair punishment as they will likely get raped by a life sentence guy name Tyrone. Once that happens, the victim can forever say "now you know how it feels (to be helplessly pinned down and penetrated*)!"
*that part is implied
One would assume that 'sexual offenders' would be kept in their own wing, both for the sake of humane treatment and to facilitate the running of the prison.
Of course I oppose the death penalty for any 'crime', but it seems particularly absurd to allow the State to kill someone who has not even taken a human life. Not very proportional, now is it?