These are the outliers where, personally, the death penalty is warranted if convicted. They do not need to be reproducing or influencing others on this. Good or bad.
Some might even say oh they can be rehabilitated and help stop others from going down that road. Yeah right. We don’t know for sure what causes it, but we do pretty much know these thoughts don’t just go away. At the end of the day, this abuser gets to continue living while others are living with the abusers’ actions for life.
One has to ask at what point do you draw the line and stop spending resources to preserve this legacy (even if it is cheaper to just house inmates).