Sixgun justice is no justice at all. Human beings established the state because they did not wish to live under feud, vendetta, warlord anarchy, or the bullying of the mobbed up. Adults established the state because there is no worse tyranny than that of a teenage boy with a gun in a lawless world.
With thinking like yours, no wonder libertarianism is and will always be a common sense-deficient fringe.
Yawn.
What was your screen name before you got booted last time?
Ahh, now I know what is driving your thinking. You are so afraid of guns that you refuse to consider the role of self-defense in maintaining an orderly, peaceful society.
Self-defense is not "sixgun justice". It is an inalienable human right. I am not and never have proposed the lawless society you fear, nor would I favor such a society. Anyone who pursued vigilante justice would be punished for crimes they committed.
You need to educate yourself in the values that founded this great nation of ours. They can work and they do work.
Tyranny - social or governmental - is NOT a requirement of human society.