One of Eric Scheie’s readers (as brought to us by Instapundit) nails it.
If the Libertarians were serious, they’d be doing what the Tea Party has done: Going to work for the Republicans at the lower levels, working at the precinct level, changing the beast from the ground up. You don’t get to waltz in and take over an organization from the top down, you have to start at the bottom and pay your dues. Unfortunately for the Libertarians, they think their ideas are so good and right and true that they don’t have work at it, if they just talk enough and craft their message just right, everyone will convert.
They really remind me of the Progressive wing of the Democrat Party.