Matchmaking at it's best

Teemo 1/8/2 Lucian 1/6/2 Braum 1/6/3 Maokai 3/7/4 Me (Yasuo) 10/17/1

I get ahead, so i roam, team does what? Oh hey, enjoy dying because fuck you, were sitting at turret with full mana and hp. Btw, I pinged my roams loud and clear. I've had so many games where I am matched with people who absolutely REFUSE to get carried, how is this fair? How are these people not banned from ranked? But hey, when you get 4 intentional trolls on your team who do nothing but be toxic all game YOU get to be the one permanently chat banned because "wtf are you guys doing?" is toxic and than their verbal harassment and greifing isn't. Needless to say, I can't carry 1v5. Even though I'm clearly expected to since I get teams like this 1/3 games.