You’re looking at 3rd party votes in the wrong light.
They’re an effective means of voicing discontent with the candidates from the two largest party. Unlike the third of Americans who don’t vote 3rd party votes demonstrate a willingness to go out and vote along with their discontent in the platform of the two largest parties.
We aren’t going to get RCV by just waiting for it to happen. It’ll take actual work.
And calling people who have different opinions from you on the Internet ‘child’ isn’t going to get them to agree with you.