Why is libertarianism so infallible?

It is due to it being the application of political science. It does not permit failed policies to be continued fruitlessly year after year with idealistic fervour, it is next to impossible for anyone surrounded by fierce libertarian critics to continue clinging on to lies. It is a purely functional machine, lubricated with justice and fueled by free speech.

You seem to be calling any policy that is not anarchistic in nature socialist. If you want to take that line of reasoning everyone is socialist. EVERY SINGLE PERSON. EVEN YOU!