Well, it was started via the initiation of force. Which is one of only two sins in libertarianism, so if someone is a consistent libertarian they can't advocate for that as the way to get going.
What I'm getting at is that the rulers of the new government voted to start it. That's pretty much what I'd expect from any government.
(and no, "the people were the rulers" doesn't count, given how many of the people weren't considered "the people" at the time)