Another reason to like Tim Walz. He has openly supported RCV: https://www.rcvbloomington.org/supporters
Removing the other by choking it to death via atrophy of no longer being able to win is how you get the remaining party to split along conservative/progressive lines. The resulting progressive faction will be more willing to do ranked choice. If we allow the Republican party to continue to exist - or worse, win - it will remove democracy as a whole and then you'll get the opposite of ranked choice.
It's not about supporting the lesser of two evils. Period.
It's about punishing the greatest evil through every means available until it FUCKING DIES.