How do we know which are which? There seems to be quite a bit of recidivism among sexual offenders. I say, chop it off....I don't want them to have kids anyway.
You don't, but I do believe in second chances, with ample precautions taken.
One would need to get the testicles first and foremost. And no guarantee even then in many cases. Habits die hard. But the horemonal energy for it would be gone.
Pretty evil stuff on several levels.