Those two parties won't keep slapfighting for an uneven split of 60% of the vote, while this third party takes power with 40% of the vote. They will merge. Or the smaller one will simply vanish, if its voters prefer the bigger loser to the plurality winner.
Even in the US, where plurality has a hideous repeated bottleneck on which two parties can meaningfully exist, we did not always have these two parties.
... wait, Sri Lanka has ranked ballots! What the fuck? They're not even using Plurality, they're doing RCV!
Ranked Choice is a hot mess on its own, but-- oh for fuck's sake I'll just use the example I always use. Say an election goes like this:
40% vote A > B > C.
35% vote C > B > A.
25% vote B > C > A.
Plurality says A wins, because Plurality sucks. You don't even need a bare majority. You just need everybody else to split up.
RCV says C wins: B has the fewest top votes, so they're eliminated. The race becomes 40% A > C versus 60% C > A. Better... but still wrong, because 65% of people would prefer B > C.
Condorcet methods like Ranked Pairs get that right. They model every runoff: A vs B is 40-60, A vs C is 40-60, B vs C is 65-35. B wins every 1v1 and is obviously the best candidate according to these voters. The supermajority prefers B.
And of course Approval Voting is just letting people check multiple names, and it somehow matches Condorcet results when enough people vote, because you are unique, just like everybody else. Genuinely there is no good reason we're not doing Approval by default.
Is there something I’m missing? They won because they got the most votes between three parties(but not a majority) and then the most again during the second round of voting between the top two. They won both times.
Ideologies aside your comment is written like you suspect foul play or something. “It’s broken because they could never win if there was competition” is just a terrible take so I assume I must be interpretting it wrong, right?
The new guy won despite winning <5% of votes in the last election. If people vote for the candidate they like instead of trying to game the system by calculating who they'd rather not win the most, then maybe we can kick out corrupt incumbents and get in fresh faces (they'll get corrupted over time too, at which point you rinse and repeat).
I just read it as supporting third parties. I thought you were going to mention what happens if a third party were to get more votes but not a majority. I actually don't know. Would there still be a runoff between Dem and Rep or would the third party actually win it? I'd assume theres some rule that the third party has to win a majority or some bs