I never ever ever ever ever want to play with parties of toxic players

I'm getting so sick of this game's toxicity. The bullying is getting absolutely ridiculous. I go into a game and our top's an intentional feeder Teemo, our Thresh claims Relic Shield is broken, Jhin won't ultimate for me when I try and gank for him but hey I suppose that's the least of the offenses listed so far. And the worst thing? Our Akali won her lane pretty hard but she has this huge attitude problem where apparently she's playing with 3 friends and I'm the bad guy no matter what. The enemy Ziggs admitted that they were a full team of five on the enemy team...So why did I get matched against them? You know a toxic party of 4 will NEVER be able to beat a non-toxic party of 5. As it happens, the enemy team only had ONE sore winner. Their Jinx. She was telling me that I was toxic and that I was 'overreacting' but none of the others had a single comment about my behavior. They knew what I exclaimed was true, and they were sportsmanlike enough to not deny it and accept their win with grace.

But why am I expected to just remain calm and get stuck with absolutely pathetic excuses of human existance for teammates? Just stick me with random players against a party of 5. That would be much better for everyone. Toxic parties of 4 are the worst players in the game by far, it's not even a contest. I know it's unranked and I honestly don't think playing ranked would fix this problem entirely, although that would lessen it massively(toxic duos or who knows what in dynamic)...but I think everyone deserves to be able to play a normal match without being possibly stuck in this kind of situation. It's the worst possible experience in this game.