Riot's banning system is weak.

I have just been permanently banned for being toxic. I think the main reason is that I said the word "etard" twice. However, I do not believe it is a just ban. I was playing Cass into an Eve and once Eve reached 6 I couldn't know where she was at all times, and no matter how many times mia was pinged she would appear up again. Eve ganked bot, and then bot started blaming me for their loss. They were the ones that started flaming first, however, and I responded. I tried keeping my cool but they kept at it. I admit I was toxic as them. I do not think I deserved a permabanned. I have a friend that says worse and gets a mere chat restriction. I have never received a chat restriction, only one 2 week and then a perma. Considering I was rising in honor levels and getting keys I do not think a perma is just. This does not matter though as League is a dying game, as without it's "fun" rotating game modes that haven't really been rotating people lack the initiative to play. Good bye the 100+ dollars I spent on that game and the 72 days I spent making good memories of the game.