If you are interested in understanding a different perspective from your current one I would recommend reading "Chaos Theory". Its short and to the point. Law predates the state. Private law exists today and law would continue without a state. For what its worth I used to hold the same position that you hold. The courts and law were one of my stumbling blocks. Its an understandable one.

Another way to look at it is the field of international law. When there are disputes between states how does that work? There is not super state that is over the whole earth( The UN is a joke). There is a court system for such disputes. The deeper I have dug into the subject of the law and the state the less I see a need for a state.