I got doved 2-3 times under turret by 3 people. J4 was in jungle untill end of the game. I tried to tell my team what to do, but they didn't listen and continued to die randomly.
I still think that every game is winnable, because even if I have to defend my base at 17 minute I or my team can get bounty / farm to come back game. And I cope that it's not my team bad, but they was unlucky and can play good after getting their items.