It isn't "fun" to play with people who don't try
I don't care if it's norms, going 2-23 bot is not acceptable, and not fun for your team to play with. You aren't trying, you are just fighting and dying over and over. Then refusing to surrender. This is what creates toxicity (I wasn't toxic btw).
My Rumble and Yorick decided to flame me for not having a turret at 12 min, while bot was 0-15 by 12 min. This is the stuff that makes people angry, and causes them to lash out. I'm stuck in a game with people who have no concept of logic, and no respect for their teammates time. I'm forced to continue playing a losing game, for no reason other than 2 ppl on my team think they are punishing me for saying anything about a 0-15 bot. Why is it an expectation to have ppl not say a word about their bad play? At 8 min I typed "why is bot 0-11?" Then, for the rest of the game I was flamed. This is toxic, in the true meaning of the word.