My initial instinct were to agree that while changing the voting system is obviously theoretically possible, it would never happen. Why would the parties vote for solutions that would destroy the duopoly they currently enjoy?
Then I actually researched it a bit, and it turns out that quite a few countries have actually moved away from FPTP. [1] That's interesting, and something to be hopeful about.
> Why would the parties vote for solutions that would destroy the duopoly they currently enjoy?
One can a imagine a situation where Democrats think the change will be safe for them and Republicans will be cast into chaos and in that same situation Republicans think they will be safe and Democrats will be cast into chaos.