That's not my idea of an ideal world. I think reciprocity has its place and don't wish to inhabit some sort of social kindergarten in which every dispute must be solved through a process of arbitration.
This only works if people who think like you are a minority. The other side can reciprocate just as hard as you can. If they can't, they'll escalate in different ways.
Society means having rules and agreeing to follow them. Yes, even for disputes like these.
Nonsense. You can argue that to be true for a reciprocity -only proposition, but claiming that any reciprocity causes society to collapse is absurd. The proof is that most jurisdictions recognize rights of self-defense and expand it in some contexts (eg your home), and yet society endures.