i got a perma ban but i think its not fair

hello there,a couple of days ago i got a perma ban..iam Plat III,iam not a toxic person i just gets triggered so fast,what gets me triggered?lets see..ive been playing league for 6-7 years now(since the beginning) but in net caffe (2-3 days per week) and ive nearly climbed a div every year since i started playing rank at season 3 (s3 bronze s4 gold s5 gold s6 plat s7 p3 almost diamond went to p1 then dropped) and played at pro tournaments also...ive been banned 5 times in 6-7 years (3 of them recently and 2 in the past) ive been tottaly positive when i play with a real team which act as their rank says..but recently ive seen so many trollers,afkers and negative players and boosted players but everyone make mistakes..we r not angels...but when someone pick janna jg and feeds and when a yasuo player goes mid and when game starts he says i cant do this and quits at min 2 and say just remake and goes out knowing that we cant remake if he quits at min 2 and when you get ezreal jg which is good as a meta but not as a player and trolls..then you get triggered (playing in net caffe and the air conditioner is being fixed and thhe weather is so hot) then these trolls rep you no matter how good r u and when they suicide and says its your fault and the 1-2 of the team players agree and they rep you and the instant feed back system ban you forever for no reason at all thats just harsh punishment that you diidnt expect at all..when iam triggered i repeat he word (kys) alot :/ but honestly it makes me sad..ive played only league till it became an addiction and iam good at it and ive never trolled once in these years i just played my best either winning or loosing...and i dont wish to stop league or start from 0 bcoz this acc is me and i dont want to lose it..i reecently stared overwatch and i liked it so much but at a point i said i dont wanna play anything other than league imagining myself making plays and such and i rly hope league community agrees that we should look into banning the players who rly deserve to be banned...we r humans..dont expect thats we always talk postivly in all games and there's always players that gets triggered easily coz every player got his own personality and i rly become sad when i play a game thats not like my rank at all and you guys know its the end of the seasonannd boosting is getting higher these days for the rewards and such and i hope league of legends consider my req even if it means perm chat resrictions or anything ^^