yeaaah, bit hard with how the community acts.
I've had games with premades where I got flamed for losing my lane despite me having to deal with their low elo friend who doesn't know shit about supporting.
I was left alone to hold a 2v1 lane while my ali support hid behind me in a bush and kept getting hooked by enemy blitz.
needless to say we ended up losing because mid and jungle(his friends) wouldn't help me and every time i would ask their friend to stop getting hooked or at least try to support I got flamed and told to leave him alone because "it's his first time playing ali"
so yeah save the bullshit about being positive and shit.
you wanna carry a game? be lucky enough to queue up with competent people and make sure to mute all as soon as the game starts.