what's the point of getting higher ranked if a troll will ruin the whole game anyways?

i got to plat yet it is so fucking pointless, when i queue up i get teamed up with literally retard. i can't even get more wins than loss ratio with this rank. ever since the 27th i try to win as much as possible but ... total wins: 12 total loss: 19 wtf RITO why can't you do shit about match making, why you keep lying to your players. LOL