PSA: There's a difference between toxicity and criticism
I get that most people don't like dealing with being bitched out for making a mistake, but when someone tells you to stop pulling a TSM Wildturtle with Kog'Maw, or to stop trying to fight the enemy laner when you're already 0/3, that isn't toxicity. I'm sick of people getting all indignant and passive aggressive, then telling everyone to report me because I politely asked them to stop making terrible decisions. If you're being dumb, there is no rule in the summoner's code saying I can't call you out for it.
I didn't insult you, I didn't say "..." or "why"; I told you to stay out of the frontline if you were squishy, I told you to peel for our squishies if you were frontline, and I told you that you wouldn't be getting ganked so much if you would ward because our jungler can't be there to constantly babysit top lane every game.
If someone is telling you you made the wrong decision and what you should be doing correctly, swallow your fucking pride and LISTEN to them instead of acting like a crybaby; you might actually learn something. Throwing a fit because of your bruised ego is just as toxic as anything else and not only that, you're actively making yourself a worse player because of it.