That's funny, because the Republicans tell me the exact same thing - a vote for a third party is a vote for a Democrat. Tell me more about how the Democrats are better than the Republicans on government spying, warrantless wiretapping, stop-and-frisk programs, interstate border checkpoints and cash seizures. Hint: they're not. They both want to datamine everything you do online. They both want to fill prisons with non-violent criminals while letting the violently insane mix into society as if there's nothing wrong with them. They both want to pretend drug addictions don't exist, and let those suffering from real addiction only find help from their dealer. I was to believe the Democrats were going to "Change" all that, but they're exactly the same. Saying is not the same as doing. By electing the same old shit, we're never going to see voting reform, term limits or districting reform. By electing the same old shit, we're never going to see any real issues addressed, just those that the two parties know are divisive enough to polarize the electorate and guarantee their reelection.
You have only proven my point by claiming a vote for a third party is a vote for a Republican. I still get told all the time that it's my fault a Democrat was elected Governor of Virginia because I voted for a third party. The fact is, many people only vote Democrat or Republican because they don't want "the other guy" to win. The only way to fix that is to institute something like instant run-off voting, but Democrats and Republicans won't allow that. They won't even allow third party candidates to join them in a public debate.
A vote for a third party is a vote for a third party. Anything else is a vote for the status quo, and a vote to continue the distractions that only serve to empower the two parties