Because it is part of Western civilization that,governments don't kill citizens. I agree with your arguments that it costs money and may put correction officers and other inmates at risk, but maybe these people can change after all. They are not very old. Maybe in 10 or 20 or 30 years they are not thevsame persons no more.
Having a differing opinion doesn't make me a troll.
"Maybe they can change" - that's a pretty big maybe. They drugged, raped and dismembered one of their own children. One things for sure, that child will never get a chance to change. They died the most horrific death at the hands of the person they should have been safest.
A couple of years back, a women near my town, was brutally murdered by a serial rapist on parole. Is the small chance they "may change", given a very generous second chance, worth rolling the dice on? Would you bet your sisters, mothers, or daughters life on that possibility?
The way I see it, society gives us certain rights when we are born. The moment you violate someone elses rights, you have waived your own. Killing a murder or rapist to me doesnt make you the same as them, by the reasoning that they chose to kill or destroy an innocent persons life. They themselves are not an innocent person, they are not fit for society.
Im aware some have the belief all human life is sacred. Im not of that opinion. We are animals, we kill other animals to feed ourselves everyday without question (unless vegetarian), killing those minority that threaten the safety and "rights" of the greater population, rather than waste millions keeping them alive and risking them reoffending, IMO is the safest of all solutions.
