How this gets moderated insightful is beyond me. You consider 'dangerous' as a binary: Either you are and you should be locked up, or you are not and you should have all the rights that everyone else has. The real world is just not that simple, and an in-between form (you are not in prisson but you get watched very carefully) may allow offenders to return to freedom at least in some sense, while the higher probability of this person to commit a crime again is also addressed.
Oh, and should you ever have a daughter, they come without the right developement tools so they may very well end up a little different than you hoped them to be.