The problem with your argument is that there's no actual true definition for what's proper and improper. Religious people may think there is but they are wrong.
I think the proper use of capital punishment should be defined as certain massive crimes (like murder, defined by the society as a whole) where we simply have drawn the line as the crime being too terrible (in essence, where we - as a society - have decided that those who do it are inherently beyond redemption) and those cases where rehabilitation (within a system - and we don't have this today in the US - where rehabilitation is available and generally effective) is impossible.
Just because you set children on fire once doesn't have to mean you'll do it again.
Oh that's alright, anyone who's that broken should be first in line for execution. They don't need to set children on fire twice to convince me of that.
Say it were your own children or parent. How is that a danger to someone else?
Perhaps there is some circumstance in which lighting children on fire wouldn't automatically qualify someone for execution, but I don't care to explore all the different circumstances we'd have to in order to find such a case. Suffice it to say that - as a general rule - things like murder and setting children on fire ought to be automatic.
Like say for me here in Sweden. We don't have capital punishment. You consider it proper to kill murders. So say someone had murdered. That set things out for someone to "properly" murder that person. Except it's not allowed by the law. Should that too require the hesitation part BTW? I mean. It was "proper murder"?
Read your last part, in the above I mean to kill by will in general. But yeah, I know there's a difference in "mord" and "dråp" here.
There was something more I wanted to say before I read that part. I think it was about differences.
I'm not sure I understand what you're saying here. I consider it a proper use of the state's authority to execute convicted criminals when they execute a convicted murderer. When I'm talking about this, I don't mean an angry father who walks in on his child's molester and beats him to death, nor do I mean someone who falls asleep at the wheel and strikes and kills a pedestrian. I mean someone who knowingly, consciously, willfully makes an effort to maliciously kill another human being without some major mitigating circumstances present. What else are we to do with such a person? A person who robs a liquor store is making a poor choice and hopefully can be rehabilitated such that they won't make similarly poor choices in the future. Someone who has no difficulty taking human life is fundamentally broken in a way we can't comprehend and should simply be removed from society. Prisons are still a part of society inasmuch as members of our society live and worth there.