SEX vs VIOLENCE
More than eloquent, in my opinion. You are quite correct that rape, and particular these kind of rapes are a question of sadism and power more than sexuality. Indeed one of the 'career paths' into violent sexual assault is experience of sexual inadequacy. However the concept of removing the tools from the offender is logical. It's just that if you conceive of the exercise as violent then you're talking about removing quite a lot.
DIFFICULTY OF PROOF
As I said before the concept of punishing the true offender and preventing recidivism is one I wholly support. Even to the extent of supporting execution. However I think that rape, and especially child rape, is an area which our courts are currently unable to rule on with sufficient certainty.
PAROLE
As for parole I think that this is an important and tricky issue. I've spoken to prison officers in Northern Ireland, and they said that parole was an essential method of controlling the population without extreme violence. You need to offer incentives for good behaviour. On the other hand my cetral concept of prison is that it protects the public from repeat offences for the duration of incarceration. Cutting sentences, particularly to a handful of months, makes a mockery of the entire system.
A further point is that the system often complains that it is over-burdened with inmates, and it is obliged to let people go before time. Obviously this argument carries some weight. However, it is my belief that we would have plenty of space if we tackled the issue of drugs and drug addiction more effectively. Decriminilisation, as I've said before, would free up massive space in the system.