You're missing the point - I'm making a historical point.
I'm generally of the opinion that more states' rights is generally better as long as it doesn't create a game-theory zero-sum clusterfuck of misaligned incentives, like taxes for crossing state borders or something like that. Some things need a federal guarantee but many can/should be devolved to the states.
You are absolutely right. And that is what makes the constitution important, to be that "federal guarantee".
I'd like to comfort you that "taxes for crossing state borders" could never happen but I'm not sure I can justify that. I was hoping the Commerce Clause would say something there but I couldn't find anything. Maybe somebody else could find something on this bit of a hole in the libertarian philosophy?
I'm generally of the opinion that more states' rights is generally better as long as it doesn't create a game-theory zero-sum clusterfuck of misaligned incentives, like taxes for crossing state borders or something like that. Some things need a federal guarantee but many can/should be devolved to the states.