Remember guys, no game is unwinnable
So I just played a game as Syndra in which I became very fed. Fed enough to make my enemy laner ragequit. Fed enough to oneshot with two basic abilities. Fed enough that if I were playing Master Yi/Katarina, I could expect 40+ kills. My teammates did well too.
As the enemy team's two nexus turrets fell just after the 20 minute mark, four of my allies voted 'yes' to a surrender vote. Could Faker have carried that game? Could Bjergsen have carried that game? I don't know, but I am one salty dog.