You don't have any rights. These are just unproven words or bribes given to you by the people with power. Of course, you'd have to protect yourself when attack

You don't have any rights. These are just unproven words or bribes given to you by the people with power. Of course, you'd have to protect yourself when attacked, no question about it. But it's not a moral choice, it's an extreme case where you don't have any choice. So I'm not going to prove any libertarian rights platform based on right to self-defense. Without government, rights will appear in a form of voluntary agreement in parts of society on what's acceptable and what's not. E.g. if in Texas it's acceptable to kill trespassers without asking question, then so be it. I don't like this rule, so I'd just avoid being in Texas. But neither my opinion, nor cowboy's opinion create any globally applicable rights. I just don't want some mafia to take over people living in Texas and dictate them what they can or cannot do. They'd better decide themselves and smoothly adjust as new people arrive or get born there.