Comment Re:Polls are essential due to plurality voting. (Score 1) 292
A third party vote says "this person votes, even if their guy can't win. Maybe, if you had beliefs and policy closer to the third party this person voted for, you would have that vote as well, and likely several others representing people like this one, who share those beliefs but didn't even feel enfranchised".
In this way, a third party vote matters massively, because it actually influences what the main parties will do- they want more votes, and you are providing them a helpful guide to get one.
The most dangerous thing in modern politics is the "safe zone". A major party candidate from a fully safe place can sponsor bills that are nationally reviled, even disliked within their own party, without any fear of reprisal, as they won't personally lose the votes. Because the main party guys sitting back WANT thees nationally reviled bills, they will avoid allowing any others in the same party to run against them. These safe zones are how the central party leaders get their will enforced- if a part of the map is guaranteed to vote red (or blue), and you are the red (or blue) chief, YOU have the power over that politician's career- if they stop obeying you, you can run another guy against him and make him lose the primary (aka, the real election), and they know that.
Parts of the nation that always vote the same are the least enfranchised parts of the nation, because their politicians only care about pleasing the party. In contested areas, the party has to run an actual candidate, who is not beholden to the party. As the nation becomes polarized, there are more safe spots, and less contested spots. That helps red (and blue) party elites, and hurts everyone else.