I am a shopkeeper and I shoot bubblegum thieves

Don’t know; there’s always the whole deterrent factor to consider. Consequences are an important part of a safe and wealthy society.

And this is the exact problem with Rothbardian rationalism. You guys will never stop quibbling over these sorts of questions until you realise that you can’t answer them. You don’t know what the consequences of a particular legal structure will. Nor do I, but I will hazard a guess that any formal institutional structure that allows a store owner to shoot bubble gum thieves won’t be adhered to for too long, and thankfully so.

Explain to me how a human being will never answer such questions when the thread is obviously humans answering such a question.