We've had this in Australia since day 1 of Federation.
One important factor the article didn't quite emphasise is how this voting system can break up the two party duopoly without creating 1920s-Reichstag-esque anarchy.
It's completely normal to put a third party as your first preference, while still indicating that you'd prefer Kodos to Kang.
In practical terms, it means the Dems would actually have to do some work in order to win the black vote, and likewise for the Republicans and working class white people.
One important factor the article didn't quite emphasise is how this voting system can break up the two party duopoly without creating 1920s-Reichstag-esque anarchy.
It's completely normal to put a third party as your first preference, while still indicating that you'd prefer Kodos to Kang.
In practical terms, it means the Dems would actually have to do some work in order to win the black vote, and likewise for the Republicans and working class white people.