I was responding to the line "if it is only the laws that are keeping people from killing each other, we are in big trouble". My point is that clearly it's not

I was responding to the line "if it is only the laws that are keeping people from killing each other, we are in big trouble". My point is that clearly it's not only the laws (and the parent commenter never claimed so), but they do help. Sure you can replace the current system of laws & law enforcement with something else. (And if you tore down the state, something would certainly fill that power vacuum.) But then you have to grapple with basically all the same problems.