On the contrary; I know too much about libertarianism! It's a sham created to provide the illusion of offering freedom, while what it offers, is the freedom of the already wealthy and privileged to expand their wealth and their control over taxation, trade and other government policies. Libertarianism would not have grown so influential, based on the funding of rich libertarians like David and Charles Koch, if it wasn't for the fact that our modern personal technologies...beginning with television, and increasingly so with all of the new, handheld devices, lead younger people to both have delusions of ego and their own self-importance in the world, while encouraging increasing isolation and inability to interact with people in real life....facebook friends are not real friends for example!
And, when it comes to media messaging, we live in a world now, where political opinions from the extreme right are considered part of the mainstream, while advocating nationalizing banking or essential industries is no longer allowed in MSM...either is any direct criticism of capitalism. You may notice that some mainstream liberals are allowed to advocate on behalf of social programs, environmental rules and regulations, and even raising taxes on the rich, BUT, as soon as a reporter or public commentator criticizes the system itself, and how capitalism makes people behave worse (i.e. Black Friday riots) and the lives of most people more unsatisfying, then they are effectively blacklisted from so called "liberal" mainstream media. A few examples: Chris Hedges, Cornell West, Noam Chomsky...after years in the public spotlight, try to find any of them invited on the Rachel Maddow Show or similar acceptable liberal programming.
The shift in the political mainstream thought goes unnoticed by most people under 40, but anyone over 50 can see a huge shift in what is considered mainstream thought today.