People need to take it easy with the "toxic" word.
It's gotten to the point now where if you say anything that's not positive it's being taken as "toxic." I had a game recently where after saying that our Yas top needs to push the tower when his lane has been roaming around for the past 5 minutes, and to follow when he tp's (they both had it), was accused by him of being toxic. Constructive criticism isn't being toxic. He even added me after the game, for what I thought was to play a few games with him as I was helping him out near the end with tips. Nope, just to let me know he's reporting me.
Are there legitimate toxic players. Yes, tons. But when someone is trying to help you, (he was new to Yas and although I don't play him a ton, I do know how to build him) it's not them berating you. If I play, no matter if they're on my team or theirs, and I know the champion, I'll try and help them out. Why? Because I've been there before. Either being new to the game, or new to the champion.
I understand toxicity is a problem, but so are people overreacting if you say anything to them.