Quite simply because the establishment has a pretty sweet (for them) self sustaining duopoly going. A duopoly where Democrats and Republicans dominate the political market place of narrow ideas. Why on earth would the Democrats and Republicans ever want to do anything to jeopardize their current chokehold on power?
Instant Runoff Voting according to Wikipedia:
Instant-runoff voting (IRV), also known as the alternative vote (AV), transferable vote, (single-seat) ranked choice voting (RCV), or preferential voting, is a voting system used to elect a single candidate from a field of more than two candidates. It is a preferential votingsystem in which voters rank candidates in an order of preference, rather than voting for a single candidate. Ballots are initially distributed based on each elector’s first preference. If a candidate secures more than half of the votes cast, that candidate wins. Otherwise, the candidate with the least number of votes is eliminated, and that candidate’s ballots are added to the totals of the remaining candidates in accordance with the preference order. The ballots are then recounted to see if a candidate has now received a majority. This process continues until one candidate wins by obtaining more than half the votes.
Instant runoff voting or IRV would no doubt be great for the people as it would open up competition and even force Democrats and Republicans to perform better if they want to remain in charge. IRV would demolish the perception of a ‘wasted vote’. If anyone prefers a lesser known 3rd party underdog candidate, with IRV there is absolutely no reason to not vote for whom you truly prefer. IRV eliminates all concerns of voting for a ‘spoiler’, because with IRV there are no ‘spoilers’. IRV would place the power of choice back into the hands of the people.
Watch the video below for a brief explanation of Instant Runoff Voting. Spread this information far and wide and demand IRV as it is undoubtedly far supreme to the current duopoly system. More competition equals more choices equals better results. This is a conversation not being had because Democrats and Republicans are sadly still dictating the conversation. Thankfully, in this modern age of technology there is absolutely nothing stopping you from sharing this valuable information with your friends.