What works in the place of violence? Escape? Maybe you can have a diaspora society willing to run away and rebuild in any territory it can ever reach and live in. Nullifying defense? Say you have some kind of structure or device that makes you invincible without fighting back and all violence against you is a pointless waste of energy. Then you could just be, and voluntarily agree to some social contract you never use violence to uphold. Love? Maybe all violence could hypothetically be stopped if the violent person's emotions could be negotiated with to circumvent their desires and everyone ends up happy. These all seem totally utopian to depend on 100% purely at a societal level, but these are all nonviolent approaches I know people take to resist violence on a practical 1 to 1 level.
That is a very good question and I do not have a good answer. Maybe subjectively... that legitimate power is perceived as justified. I grew up in a communist regime and had the opportunity to experience the difference between obeying rules because you are afraid not to vs obeying rules because they are at least somewhat correlated to what the majority considers to be good. Sure, even in democracy you obey some rules just because you are afraid not to, but you also understand that you live in an imperfect world that is not centered around you and you can accept some level of power you don't perceive as justified as long as it is about something like zoning rules and not your fundamental freedoms.
But it seems highly subjective... maybe if I grew up in ancient Egypt I would believe that the pharaoh has the right do whatever he pleases and who am I to judge whether it is evil or not.
Basically it came down to an attempt at FUD: "Everyone is biased, you can't really trust anyone, therefore I don't need to acknowledge of any of the substantive points you are making."
Misdirection, in other words.