Getting punished for the first time ever

So getting chat muted for the very first time since... ever. And frankly speaking, I do feel wronged. It's not that I didn't say bad things - I know I did, and in that regard, I accept that punishment. However, what is seriously uncool about that is the fact, that not a single time was I the initiator of that. There were always 2-4 people starting to verbally abuse me in chat. And yes, I can turn off the chat and in fact, in most of my games I do that very thing at the very start of the game, because since I've returned to the game (after good 3-4 years of absence) I've never had a game without a flamewar (unless I instamuted everybody, but that only means I don't get to see it). Sadly, in these two occasions I forgot to do that. Okay, so I am in a game with 3 premades who keep harassing me whole game, say rude things etc. and I am rude back. Sure, my fault, I shouldn't have answered, I forgot to /mute all. Second game, same thing, I get harassed by one person for something I haven't done but others back him up because "he's a good player" so logically speaking, I'm the utter garbage etc etc. I answer in a not very dignified manner. Ok. My fault, again, didn't do /mute all, I deserve it wholeheartedly. Lesson learnt. Now the best part comes though! After each game (or rather, before each game) I get to read all messages I've sent in those 2 games. And I only get to see my messages. So of course, they are completely without any context. So in those messages I am the bad person. The fact that they first said that I'm the worst scum and garbage piece of sh!t tr4sh and I should die of cancer isn't there - because I'm the bad person, I deserve that treatment. Of course. This is League of Legends. I'm still cool with that, not a single thing has changed in those 4 years of my absence. But I have to read through this shit EVERY SINGLE time between games. Else it won't let me through. Sometimes more times. Is it a bug? I am not sure. Nor do I really care. But it sure makes me angrier. After a finished game, before starting a new game, sometimes I click "I understand" and it doesn't do anything (or maybe it does - either way, it shows it again, my record so far is having to read it 8 times after a single ARAM game and then once again before I could start a new match). Awesome. That makes me feel much better, considering the initiators of the verbal abuse in those previous games didn't get punished (because I was the only one reporting them, while they were in majority, so I got reported from at least 3 people + presumably enemy team, which I am of course not sure about, but it seems likely regarding the after match chat where my team begged them to report me) I still understand that. That's my punishment. Is it fair? I don't think so. But life never is, so I move on. But what REALLY REALLY grinds my gears to the maximum is the fact that now I for whatever reason CANNOT turn off chat. So I get another toxic people in next game flaming me for NOT COMMUNICATING WITH TEAM(I am banned from chat for Christ's sake! I cannot answer! I can only ping!) and /mute all doesn't work anymore! Neither does manually muting them in the "tab" menu. It's greyed out. So I am forced to read all that chat while I am unable to answer back. Good lord, make me unable to chat, but for everybody's sake, don't prohibit my option to turn off the chat... Apparently, trying to return to the game I know has the most toxic community ever - I've never met worse people anywhere, in any other online game, nor real life, was not a good idea. But this whole punishment, where I have to read through the chat 9 times between 2 matches, where my mistake was answering to the verbal abuse, AND prohibiting me from muting chat in next games so I am FORCED to take the abuse really feels a bit excessive. Well. A bit of rant.