Why libertarians will never win
People hate libertarian policies.
It's easy to spout off about being anti-tax when you are in Washington because you then get to pass the buck to the state and local level. What's interesting to see here is that there are GOP governors across the US, even in GOP strongholds such as Colorado and Alabama, that are facing budget realities and raising taxes. Voters want what is normal, such as roads and schools and while the GOP might also view those programs as socialist, voters see things differently.
Or, you might say that they don't care if they are socialist. Almost every nation-state in the developed world has some mixture of 'socialist' and 'capitalist' policies. Libertarians who think they can discredit a policy by proving that it is socialist are wrong. The people like their socialism, and this has been shown again and again.