I feel like nothing would be better for libertarians getting their message out than public financing of elections breaking up the Republicrat duopoly. Every time I bring it up though, all they think about is "government control" and "tax money going to my enemies". I feel they cut their own throat in that regard, because in the present system those they feel are keeping them down are funding both sides and keeping libertarian voices on the margins. I'm no libertarian fan, but I really can't see why we couldn't be allies on this issue. Not only would new people be able to break into the political scene, but it should cost us less in the long run, when politicians have fewer expensive promises to keep. Seems like a goal most libertarians would support, if they weren't blinded by ideological correctness.
Because it's an impossible fantasy konradv. Our system naturally gravitates to two powerful parties. This fact of political life is an inevitable outcome of plurality, winner-take-all elections. There's no question our government will be dominated by one, or at best two, mainstream parties. The only question is, how much control will they have? Public financing gives them much
more control, not less.
You've not (yet) outlined any system for preventing a public financing scheme from becoming politicized itself, and that's the Achilles' heel of your proposition. Public financing requires that we give up our right to support politicians that we agree with, and instead let government pick them out for us. It seems even a dyed-in-the-wool statist would see the potential for abuse in such a system.