I've been working with local groups trying to get it passed. It may be worth investigating if there are some near you. Donate money or time or support.
There are other options as well, approval voting has several advantages over ranked choice voting. It is simpler and it there is no spoiler effect (voting for your favorite candidate will never hurt your second choice)
Unpopular Fanatics vs Apathetic Majority.
Conservatives refuse to change their unpopular policies and with all the crap they pull to make elections favor them, they struggle to get 50/50. If elections were made fair and representative of the population....they would never win. The only way to win in that environment is to have the more popular policies, and that is antithetical to conservativisim.
Actually, it would be better for Republicans to try to convince the population their solutions are better instead of the BS we have now. It might help the Republican Party become somewhat normal again and then get more votes. I would love it if we could have real debates on real issues, instead of the BS we have now. I might even be a tad conservative in some areas... But right now, the choice is between Dems or Crazy Town. I think a popular vote would change politics and strategy so that you couldn't have a Trump anymore.