I'm done after 4 years of playing league of legend.

I would like to officially be done with this game. I played this game for over 4 years playing primarily one role and champion. I love support and reached my goal this month of hitting the diamond elo. I can't play this game anymore primarily because of the mindset of players even those that have hit diamond. Unlike others sadly I have a 2011 mac and league is the only platform that I can play. I also can't play anymore since after the new patch my mac decided to shut off on its own along with fps dropping despite ethernet cable. My mouse also failed and wouldn't respond. At first, I didn't mind and enjoy the game but soon realized that people like many people on the internet find joys in making life hard for others. I'm not a bad individual outside of this game, but how people play just gives me a headache. I have seen players playing champions without practice, playing champions just because people in the pro are doing it playing harder skill base champions because its "fun". People always want to punish toxicity but Riot never punishes the people I mentioned above mainly because they just can't enforce that. I'm not toxic such as people like tyer1. If you gave out like first blood its fine. What upsets me is when you make the same mistake many times. Changing the build to AP for champions like tryndamere for viewership/ experimenting. Things like these regardless of elo is what upsets me and should be done in normals. I have even met with people in league chat to go out my own way of understanding of why they are even playing or making other people miserable.
I want to win. Time is finite. This is my mentality. I don't want to waste like 20+ for your selfish endeavors. Outside of this game, I'm a good individual. I finished pharmacy school. This game for some reason leaves me frustrated sadly. Unlike some people in this forum. I believe it's not the game that the problem but the people and the attitude on how they approach this game. I have a request for RIOT that isn't perfect, but a step to a better decision. I would like to incorporate league chat available for all 5 members. It'll discourage trolling and toxicity. Also, have players access from their own team what champion they have a high win rate or % they main instead of using third party site. Tribunal should be back and People who troll should be judged by the community by using replay video instead of just looking primarily at the chat. Toxicity can be gone if people play champions they have a very good understanding of in RANK only. Like you should not play rank if you main ADC, but then decided to play jungle role or have the system forcing you to do that just because you didn't get your role. I'm sorry for any improper grammar.