What I was aiming at with GP post was that as far as I understand, at least in the early days of the Libertarian Party, a significant number of them were actually completely against the existence of a government. (Wikipedia mentions something about an "anarchist-minarchist debate" or something like that.)
But political reality of course leads to compromise. It is simply untenable in the US, and most of the Earth to be taken seriously by a large majority of voters while espousing getting rid of the government.