The single-winner form of ranked choice voting (a.k.a. instant runoff voting) doesn’t help third parties as much as you think! It makes it safe for you to give

The single-winner form of ranked choice voting (a.k.a. instant runoff voting) doesn’t help third parties as much as you think! It makes it safe for you to give your first choice to a third party candidate who has no chance of winning, because they’ll have no effect on the result after being eliminated in the first round. But as soon as your third party candidate becomes a serious challenger, you’ll risk instead eliminating your second choice, whose redistributed votes are much more likely to favor your last choice. https://www.electionscience.org/library/the-spoiler-effect/ https://www.electionscience.org/library/the-spoiler-effect/ So IRV is great for stopping weak third parties from upsetting the balance of the two-party duopoly, but not so great for helping strong third parties get a real chance at winning. If you want real change, there are much better systems available: take a look at approval voting, score voting, or Condorcet voting.