PSA: There is a simple solution to toxicity and it's available in every of your game.
It's called the mute button.
So next time your 12 years old ass is in ranked and vayne is shitting on you because you went 0/4 top, just fucking mute her instead of saying you're going to stay in your lane all game to make your team lose because ''She doesn't deserve to win she mean af omg my feelings ouch :'("