You may not find so radical if you have ever been the victim of one these sort of attacks.
With most of these sort of people - it matters not how educated they are or if they hace a nice home, the bloke who was the leader of the G Block gang did have a nice home - a brand new one that was buily alongside a common - he was also quite intelligent according to his school reports.
Agree that most of those who go to prison re-offend when they are out, but how woule you feel if someone kicked your head in amd then you found out that they were just getting let off with a slap on the hand