Libertarian justice - and stop dancing around this concept. You’re setting up a false dichotomy or presenting me with a false set of choices between fuedalism and global government or fuedalism and democracy. As radical libertarians, we’re supposed to reject both. You seem to be actually advocating neo-fuedalism as an alternative to democracy (and this is hardly a strawman given your rather blatant comments inferring this). I could just as easily make a utilitarian comparison between communism and fascism, and conclude that fascism is the lesser of the two evils, but that doesn’t mean I’m going to go on to actually endorse fascism.
I find it strange that you continually speak as if libertarianism is divorced from a concept of justice, as if it’s all just a matter of utilitarian economics. You should very well know better than that - re-read your copy of The Ethics of Liberty. Libertarianism is a comprehensive political theory, and as such it has to do with interpersonal ethics and consequentially a concept of rights and justice. Or do you reject Rothbard’s universalism and hence disregaurd human rights?