The crux is that a first-past-the-post voting system incentivizes voting for one of the two big parties. Voting third party is equivalent to voting against your preference of the top two. There’s a bunch of really neat voting systems that avoid this problem handily.
I would argue that any majoritarian electoral system (winner-takes-all), including ranked choice, incentivizes large parties. There is some nuance between them, but I don’t think that ranked choice can fundamentally solve that issue. Sure, you can enter a protest vote, but will it really change anything? I think that parties need realistic changes at gaining (some) power in order to be viable in the long term.
Seeing larger third party percentages regularly would be important - bit by bit and without threatening election of the lesser of two evils in the interim, could lead to exponential growth until that 3rd ventually competes as a valid 3rd party
The crux is that a first-past-the-post voting system incentivizes voting for one of the two big parties. Voting third party is equivalent to voting against your preference of the top two. There’s a bunch of really neat voting systems that avoid this problem handily.
I would argue that any majoritarian electoral system (winner-takes-all), including ranked choice, incentivizes large parties. There is some nuance between them, but I don’t think that ranked choice can fundamentally solve that issue. Sure, you can enter a protest vote, but will it really change anything? I think that parties need realistic changes at gaining (some) power in order to be viable in the long term.
Seeing larger third party percentages regularly would be important - bit by bit and without threatening election of the lesser of two evils in the interim, could lead to exponential growth until that 3rd ventually competes as a valid 3rd party