> This isn't possible on Youtube right now.

Well, theoretically you could build a service providing blocklists, and users could subscribe to such blocklists with a browser extension blocking accounts. Basically Sponsorblock or Blocktogether for Twitter, with individual users flagging accounts for slopaganda, content theft, rage / engagement bait and other issues.

Unfortunately, it's way, way too likely that you'll run into some sort of bot detection on Youtube's side and I've seen more than enough horror stories about people getting fucked over and getting their entire Google account perma-banned with no way of recovery.