Reasons why voting Libertarian (or another third party) is not "wasting" your vote.

[Jumpin]

American Libertarianism is not libertarianism, it's more like a redneck version neo-liberalism.

Also, in an Anerican style electoral system, voting for a third party IS a waste of a vote. Only votes for the top two parties count, because they're the only two who are contesting. In other words, if you are interested in stopping Republicans, you vote for Democrats. If you vote for another party, that is a vote that is going to a lower party instead of going against the republicans.

Now, in normal countries, your vote will much more likely count towards someone, you vote for the candidate you like in your area, and then you vote for your party of choice, and if that party gets above 5 percent of the popular vote, they can appoint chairs in the government.