It's not hard to imagine a local election where both the DNC and the GOP put forth lackluster, hyper-polarizing candidates, and a reasonable third party candidate who's everyone's #2 pick wins.
It's not so much that these other systems would enable third party candidates to win, it's that they would reward less polarizing candidates with more broad appeal.
It also gives hard feedback to the parties about their constituent's real politics. If a party wins but sees their votes mostly coming from #2 preferences, the next round of primaries will probably shift further from the center. Similarly, if they see themselves as #1, they can shift back towards the center.
Currently, the average voter is poorly informed, the marginal voter is uninformed, and the non-voters are misinformed. I challenge you to read any book about voter ignorance and come away with your current view.[1]
Also, while a highly educated person might have a much better understanding of foreign affairs, they may have a poor understanding of what it feels like to come home to a decrepit apartment just to watch your children get skinnier. Even though they might be more informed and have better solutions for the problems they care about, they'll prioritize different issues.
If the average voter is poorly informed, the obvious solution to me would be to work on that issue directly, not on chipping away at what little power they have.
It's kind of counter-intuitive, but getting people to turn up to elections is often the first step in getting them to build informed opinions, read up on issues, and take their civic duty seriously. This is what people are hoping for when they try to improve voter turnout; they believe that many of our society's ills could be helped by fostering a more civically engaged populace.
>"If the average voter is poorly informed, the obvious solution to me would be to work on that issue directly, not on chipping away at what little power they have."
If someone is capable of doing a great deal of damage, the first step is to limit that damage, before teaching them how to do things properly. Educate the marginal and non-voters before you let them wreak havoc on an already troubled system.
>"It's kind of counter-intuitive, but getting people to turn up to elections is often the first step in getting them to build informed opinions, read up on issues, and take their civic duty seriously."
This is actually a variant of one of the first philosophical cases for democracy (though I can't remember who originally made that argument); the only problem is that it isn't true. Just read some of the books on voter ignorance, and you'll see exactly how wrong it is.
The point of democracy is to trust people to be able to make those decisions, and give them the tools to hold their leaders accountable.
I'd rather that electoral outcomes reflect what people would vote for if they were well-informed (which is what the cited book is about). You can predict how more information and understanding would impact voting trends (there are various techniques for this), and the results are not that everyone agrees on everything, but the impact would be an improvement (in my opinion).
what is "widespread popular biases" but systemic coercions?
and no, we specifically don't need to understand individuals, just the systemic coercions (so we can counteract them).
and we don't need to correct for internal biases over a population because, by definition, internal biases are uncorrelated. but you said "popular", which is a social bias that correlates beliefs.
Over the past couple of decades, Libertarians aren't becoming Republicans, but Republicans are becoming Libertarians.