Libertarians are not anarchists.  They are in favor of government regulating force/fraud in markets, but not central planning to pick the winners and losers. 

To use a sports analogy, firms are the teams competing to provide the most value to the public, while a proper non-coercive government is the referee who maintains a level playing field.  When the ref gets bribed by one team to make bad calls, the fans in the stands lose.

If you could stop beating your anarchist strawman and pretending it's a victory over libertarians, that would be great.