What would you do if you were in a 9v1?

Picture this: you fall behind, your team starts playing the blame game (you're the scapegoat) and wants you to ragequit or "kill yourself", and then asks the enemy team to join in on the verbal abuse. You get griefed (teammates tell enemy where you are or steal your CS so you can't farm), you get hunted by enemy team (who give no fucks about your teammates), etc. Try to keep playing and mute them all? They'll all try to keep making it a living hell and don't give a fuck about the actual game; the new game is "Beat down this guy!"

What would you do? Oh, and you're not allowed to say "Just report them", because that's not going to accomplish anything. You'll get 9v1 reported, which ends up manipulating the new automatic ban system.