I just got out of an hour long game where one guy on our team was intentionally feeding, and screwing with our minions [Nefera, warping them out of lane, into enemy tower, ect.], and we kept asking for surrender. NOpe, nope, first it was some dumbass who though he could 1v5 our way to victory voting no with the troll, then it was just the troll.....We literally asked the enemy team to end it because we couldn't surrender.
Surrender needs to be flat majory-- if three people vote yes, the match ends. We shouldn't have to suffer through a lost match just because we got a troll. That doesn't make me or anyone else want to try harder, it just makes me want to stop playing altogether.