Net Nuetrality has nothing to do with the government controlling something. If has to do with preventing corporate interests from controlling your access by charges on where you visit.
What entity enforces this prevention that you seek?
I am quite comfortable with the FCC proposing tiers for different types of content, I am completely uncomfortable with allowing providers to control access to types of content.
I checked the libertarian position and I am suprised by it. Individual freedom can be as quickly eroded by major corporations as by the government. And it isn't long before the major corporations can be coopted by the government in the pursuit of "national security". See the phone company actions under Bush. The Cato Institute has become so reflexively anti-government and pro-corporation they have lost site of the point which is to protect our individual freedoms.
Having open net nuetrality laws which are in the daylight and regulated by the FCC with all eyes upon them is far superior to corporate control which can be manipulated in the dark. The internet was a huge advancement in freedom of speech and allowing net nuetrality to be taken away so that corporations can make more cash is indefensible.