I don't understand the argument against government violence. Violence has a very interesting feature by design: assuming you have enough force you can always resist it. There is some slack in the system that lets you change it under special circumstances. Compare that to other non violent ways of enforcing the law. In theory one could genetically engineer humans to always obey the government. There is no opportunity for resistance and even if by mere chance you do resist, you might be subjected to a drug or gene therapy that "fixes" you.