Dogs that are dangerous are put down, and no one ever tries to save them on the basis that they had a bad puppyhood or are incapable of knowing right from wrong. It’s a matter of public safety.
The execution of murderers (mentally ill or not) should be in the same category. They have demonstrated behavior that is incompatible with the safety and well-being of others. Putting them in prison does not do much to restrain that behavior, since the prison is then in the position of having to take extraordinary measures to isolate those murderers from the other prisoners, and to protect the guards. Execute them, and more prison resources can be turned towards rehabilitating the other prisoners.
Capital punishment. This is one of the very few areas where I’m in agreement with the liberal left, but for vastly different reasons.
I’m against capital punishment. The major political reason is that it is dangerous in the hands of those who are evil - like the current administration. Are you willing to take the chance that Zippy, Holder, et al will not declare you to be mentally ill because you disagree with them? We’ve seen how *responsible* they are with the power of the IRS, EPA, TSA, ....
I don’t want a corrupt government having the power of life and death over me, my family, my friends, conservatives, Christians, etc. If that means keeping a few murderers in prison rather than executing them, I’m willing to do so. Not saying that heinous murderers don’t deserve the death penalty, just saying that I don’t want the government to have that power and make those decisions.