I don't love the state, nor do I believe in ' The State ". Maybe just cause it's a very ugly word, but still. I do believe in government, and I could love a moral one if it ever existed.
Are we talking about something different in "the state"? I am talking and always have been talking about the current configuration of large human societies, the nation-state. Whether autocratic, oligarchic, or democratic, I firmly believe that there exists a better solution to organizing human societies. In fact, I think it's silly to conclude that all human civilizations, from here on out, will always be centralized authoritarian nation-states.
Now, I realize that your ideal state is not authoritarian, and I think that's a step in the right direction. I also think they can be decentralized and that that would be a more effective solution.
Putting aside the debate over the legal and moral validity of the death penalty, I find the quest to find a completely painless way to execute people kind of silly.
Very few people get a painless death. As a law abiding citizen, it's very unlikely that my death will be painless. Looking at the statistics, chances are I'll die of heart disease, cancer, or in a car accident. The same goes for just about everyone else.
Obviously, nobody is entitled to a painless death. Why should committing a heinous murder be a golden ticket to a painless death, something which few ordinary citizens (let alone the murderer's victims) are afforded?
Just designate a hole to drop the bodies in. A huge pit that goes hundreds of feet under the ground. Every few centuries we'd have to clean up the hole and make room for new people.