If what you're saying is true, then I'd like to know why Instant Runoff Voting seems so superior to binary voting schemes (like "democratic" or "republican" wit

If what you're saying is true, then I'd like to know why Instant Runoff Voting seems so superior to binary voting schemes (like "democratic" or "republican" with the occasional "green" candidate acting usually as "democratic spoiler") and yet hasn't been widely implemented. https://en.wikipedia.org/wiki/Instant-runoff_voting https://en.wikipedia.org/wiki/Instant-runoff_voting