I totally agree, but I don't agree that forgoing violence as a punishment is the same as excusing the bad behaviour. The best outcome for everyone is surely rehabilitation, no? There are other punishment options if you still insist on inflicting some hardship.
> Over 60% of violent crime is committed by under 5% of the population. Don't underestimate the value of simply removing repeat violent offenders from society.
That neatly avoids the question of why they reoffend, which is precisely my point. If prison is effective as a deterrent then why do they keep coming back? "Simply removing them" for a period of time simply perpetuates the problem, thus helping to ensure more violent crime in the future, not less.