Can you please explain how and what violence there is in a libertarian society?
A society of capitalists without any regulating government and system of laws to keep them from kidnapping and murdering each other for the sheer value of their internal organs?
That's a nightmare world of the darkest order.
Not necessarily the case. Libertarians usually acknowledge the need of government for the sake of keeping the worst possible privations under control. Libertarians simply believe that it's not the government's business if Person X wants to buy a ladder, Person Y can sell a perfectly sturdy and well-built ladder for .05
BTC, and Person Z can sell a ladder that is going to fall apart when you put a significant amount of weight on it for .005
BTC.