> it makes me sick that I have to vote for the least worst one.

Perhaps you should vote for someone else then.

    “It comes from a very ancient democracy, you see..."
    "You mean, it comes from a world of lizards?"
    "No," said Ford, who by this time was a little more
  rational and coherent than he had been, having finally had
  the coffee forced down him, "nothing so simple. Nothing
  anything like so straightforward. On its world, the people
  are people. The leaders are lizards. The people hate the
  lizards and the lizards rule the people."
    "Odd," said Arthur, "I thought you said it was a 
  democracy."
    "I did," said Ford. "It is."
    "So," said Arthur, hoping he wasn't sounding ridiculously
  obtuse, "why don't people get rid of the lizards?"
    "It honestly doesn't occur to them," said Ford. "They've
  all got the vote, so they all pretty much assume that the
  government they've voted in more or less approximates to
  the government they want."
    "You mean they actually vote for the lizards?"
    "Oh yes," said Ford with a shrug, "of course."
    "But," said Arthur, going for the big one again, "why?"
    "Because if they didn't vote for a lizard," said Ford,
  "the wrong lizard might get in. Got any gin?"
  
  ― Douglas Adams, So Long, and Thanks for All the Fish