Sometimes, if you don't like either trump or hillary, you should be able to throw away your vote We have these guys everywhere in europe, parties, who will never get into goverment, but you don't like any of the big parties, you can throw your vote to them and make them happyThis was great. Thank you for that.
OP clearly has no understanding of mathematics, so I'll say it here: voting for a third party ensures that your vote doesn't count. There's no benefit to any far-right or far-left person for a third party siphoning off votes. One need only look to the 1992 and 2000 elections to see the effect of this:
In 1992, Ross Perot took almost 20mil votes, many from Republican voters, causing Bill Clinton to come into office with less than 45% of the vote. Do you think those people who voted for Perot would've rather had someone who would've pushed for at least some of their policies? There was no benefit to the Republican party or any third party because of this result.
In 2000, Al Gore lost Florida by a few hundred votes, which lost him the election because of the electoral college, while Green Party candidate Ralph Nader got about 90k. Do you think those people who voted Green would have rather had someone who would've pushed for at least some of their policies than someone who pushed for none of them? There was no benefit for the Democrat party or any third party because of this result.
It's all about what you find important. If you think not being close enough to your policy positions is a good enough reason to ensure that none of your policy positions are passed, then you can vote third party as a protest vote. There's talk about some neocons not voting Trump because they find the pro-war position to be more important than anything else. There's also talk about Bernie-supporters not voting $Hillary because she holds Bernie's principles high in one hand while jerking off Goldman Sachs with the other.
Make no mistake, if you're right-wing enough to want to vote Libertarian, you're throwing away your vote by not voting Trump. Likewise, if you're left-wing enough to want to vote Communist party or something, you're throwing away your vote by not voting $Hillary. We don't have a parliamentary system. We don't have an alternative vote system. You get one vote, and you'd be an absolute fool to not employ strategic voting if you had any hopes of getting at least some of your way.
Sources: Gardner M. (October 1980). Mathematical Games-From counting votes to making votes count: the mathematics of elections. Scientific American, 243, pp. 16-26
Niemi, R. and Riker, W. (June 1976). The Choice of Voting Systems. Scientific American, 234, pp. 21-27