Given how the political system is set up, it's not surprising that we get the "I hate politics" responses. In most states, your Presidential vote is already decided for you. A Republican in New York might as well not vote, and a Democrat in Alabama ought to stay home.

In most Congressional districts, the party has so gerrymandered the districts that it's easier to dislodge communist dictators than defeat the incumbent party.

Even if the above weren't true, our voting system encourages a two-party system with its winner-take-all rules, so third parties like the Green Party or Libertarian Party aren't as popular as they might otherwise be because of the 'wasting your vote' phenomenon.