Toxic behaviour in games Vs Rational Thinking/process "being friendly"

I've tried to reason with some of the toxic people.. saying please don't swear at me. or others. I've even tried to say would you say that to me "In real life" some of them have said no and others have said yes. there is no really team work in League, the community is just toxic if they start to lose. it would seem none of them have ever played a sport where you just have to accept the fact you're going to lose a game regardless of how good you are. its a "Team game" not a single player game. I can't believe i'm saying this but for the good of my own health i'm going to quit this game. I love it however I dislike the toxic nature of some of the players i wish they would realise words do hurt and change how we/i want to play or even win.

I'd just like to thank more than half the players I've played with who I've had great games with and those even if they do swear at me i hope they one day see the error of their own ways.