Vote and volunteer in local elections. I think most people would be surprised how few resources campaigns for state legislature have. You and a few friends can make a huge difference. Volunteer for the Dem (out of necessity) primary candidate that wants to replace ftp voting with ranked choice or another similar system, and show up to meetings regardless of election cycle to give input. It wouldn’t take much to get their resources up to the level of establishment candidates.
If a few good sized states could get this the others would get jealous about them having real choice and I believe it would start a snowball effect. It has to come from state legislatures though.
Turning off Java script worked when this happened to me. Firefox and ublock origin. It breaks some things but you can do it on a per site basis.