The primary goal of RCV in the US is to address the hostile partisan divide. Making more parties viable is secondary.
When you have a ranked choice system (even if it's only in a fraction of states), it incentivizes the candidates to not disparage each other. If candidate A attacks B, it means the B supporters will rank A lower. RCV draws candidates closer together.
When you have a ranked choice system (even if it's only in a fraction of states), it incentivizes the candidates to not disparage each other. If candidate A attacks B, it means the B supporters will rank A lower. RCV draws candidates closer together.