WYSK: There funded by dark money PACS, but some good reporting has brought out these names: David Koch, Peter Thiel, Reid Hoffman, Mark Cuban, Harlan Crow, and Michael Bloomberg. Some of there members are most famous for stopping big bills. Joe Leiberman, for example, single handedly stopped the single payer portion of the ACA. Senators Joe Manchin and Kyrsen Simena kept the John Lewis voting rights act from passing, and famously kept the senate from repealing the filibuster.
Ranked Choice Voting doesn’t make third parties viable, either. It uses the same counting method as our current system (tally up people’s first-choice preferences) and therefore suffers from all the same problems, like vote-splitting, spoiler effect, and center-squeeze effect. You can’t fix the problems of FPTP by adding more rounds of FPTP. You need to allow voters to express opinions about all of the candidates and then actually count all of those opinions.
If you want third parties to be viable, you want real reforms like STAR Voting, Condorcet RCV, or Approval Voting.