Forfeiting

How is this a 'team game' if forfeiting doesn't have to be unanimous every time its voted for? I just got out of a game where we were literally winning, ahead and doing fine and at the 20 minute mark my whole team suddenly unexpectedly voted to forfeit except me. This is a loss that I do not deserve, its such a joke that its even possible. I understand the idea of not allowing 1 person to stop a game from ending because they're trolling or something. But seriously the fact that I was just given a loss with literally 100% no control over it at all is depressing. When you hit 'play' especially in ranked, you're committing to play the game through. I guess it thinks I'm not part of the team and my vote doesn't matter. Also considering the fact that a 'duo' team could 'troll' and not allow a game to end really defeats any argument you could make supporting a non unanimous forfeit vote. Unless there is a detected afk, or if someone doesn't hit 'yes' or 'no', the vote should be unanimous always no matter what.