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.

It's 'infallible' because libertarians don't agree on anything but free market economy. Ok, we all know that it's superior but what about abortion? Or immigration? Their everyone for himself attitude prevents them from winning any election.