Disable Chat for Good

Please I would love someone to give me a valid reason for why there's not a disable chat completely setting for in-game. Fuck yes Im toxic and it would help me a lot, hiding the shit doesn't help when I'm still able to type. For people saying grow up or just don't flame, I know I have anger problems and bipolar disorder and I can't help it, those of you who don't have issues, please shut the fuck up cause you have no clue what my fucking life is like. All I want is a way to disable my chat so I don't have the fucking urge to flame, oh its not that hard tell that to my 3 games in a row I lost 7-3 8-3 22-4 as jg because I either have afk , inter or both, and No im not making shit shit up, the game I went 22-4 or whatever it was a 5v4 and my team still wouldnt listen to me or group even when I would ask nicely, so how the fuck am I supposed to win, if they wont listen to me being nice might as well flame their ass, OR WAIT SHOULD I BE LIKE ALL THE LITTLE %%%%S WHO COMPLAIN ABOUT TOXICITY AND JUST AFK INSTEAD BECAUSE THATS SO MUCH BETTER, so once again I would love for someone to give a good reason why they haven't allowed this as a setting. For those saying it ruins communication. THERE'S NO FUCKING COMMUNICATION IN LEAGUE ALREADY ESPECIALLY IN FUCKING NORMAL GAMES, I just spent 55 min trying to COMMUNICATE politely about grouping and doing shit, instead I have a garen waiting in a bush next to blue for 10 mins trying to catch someone off guard, while we are TEAM fighting at baron. Literally if you say it ruins communication youre retarded and wrong, I can tell someone exactly what they need to do with just pings Attack this tower/player Signals to be careful MIA protect obj etc etc etc and fuck it just disable me from chatting you can keep chat window to let me see what my team is saying so they ask what should i buy, BAM I just ping a couple items etc etc etc. So please someone give me a valid reason besides riot just wanting to ban people because they know they make money off it