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

[DivinePaladin]

You're both correct and incorrect.

Both parties are on the brink of collapse, yes. A Trump Presidency will damn both parties - Republican establishment falls apart and are lose-lose if he succeeds or fails because they get blamed either way; if Trump wins, Republicans have a majority on all three fronts and they win the right to gerrymander the districts even further, further screwing the Democrats' chances of coming back as they currently stand. Not to mention this race is one indictment away from being entirely non-establishment.

BUT, if you live in most states, your vote does not matter. Your state is likely hardwired one way or another, and there's an insanely low chance of any number of votes flipping the state one way or another. The only reason to vote third party is IF you're actually a third party and want to try to push towards that 5%. Until the impossibe happens, and more states take Nebraska/Maine's district delegate system, this will remain true. Hell even then districts are usually gerrymandered one way or another, or the district is defined by class and therefore biased one way or another either way.