Libertarians have a 0% chance of winning because sheep keep believing that.
Libertarians have 0% chance of winning because It's a philosophy that endorses drug decriminalization, open borders, and opposes most military interventions.
They really have no plan for the future. Their ideology is one of allowing the individual to do anything they want unless they hurt or interfere with the rights of others.
The problem is obvious. Who decides when others' rights are being violated by an individual? Who decides what those rights are? What's the penalty for doing that?
You can't advocate for complete individual freedom in a very large society. At some point, every system collapses: education, infrastructure, economic, ...
Most of what I've read and seen about Libertarianism tells me it's just another word for anarchy. The only difference is anarchy wants to abolish government, while Libertarians want a government that does not make and enforce laws which compel standards of individual behaviors, but still provides the limited functions they think gov't should provide.