Why was i banned for this BS?

So, today i was playing as nidalee, and i banned someone elses champ in champ select. They got triggered and this has happened to me 100 times as well, where some random troll desides to randomly ban my champ but no one cares except for when i do it sometimes on purpose but this was not I get blamed 900 times then resulting in a 10 game chat restriction but when someone else does it nothing happens its like nothing happened. Also got autofilled, and i wanted to try out shen as well, top lane, but was taken because i apparently banned his kled which was not on purpose but realized it after and admitted to doing it although i didn't mean to. After the game i went 2/13/3, and was suspended for "toxic behavior" even though i only said i wasn't inting and how the others were trolling me ON PURPOSE. I think this ban was pretty stupid because i wasn't very toxic besides the fact that i said they were inting instead of me. And i don't understand, if that was toxic enough to recieve A 14 DAY BAN just for that then riots banning system needs to be fixed. I should've gotten a chat restriction but instead a 14 day ban was issued, i believe this was for inting (tried my best and wasn't inting i was feeding, yes but obviously i tried my best but still fed because shen trolled the FUCK out of me) even though i tried my best but this shen fucking stole my blue buff at the start intentionally and would not deny it. He kept making the excuse on "securing it" even tho he came all the way bot to come and help, yes they invaded however they were so out of the range of getting the blue buff that i feel like it was intentional and meant to troll me.

I later played top lane a little to get exp to go back to jg since ya know shen took my blue. And didn't mean to give first blood but did, but that's besides the point because i was banned for player abusive comms. Although i made of fed, i didn't deserve a ban for being bad at the game. Heck, my main account was banned also for "player abusive comms" because in ranked I sort of flamed the inting (yes inting he ran 2v1 at the start of the game under turret btw level 2) lux. Although yes i was kind of toxic i just asked for a report on the lux and told her to stop inting and such, our neeko in the ranked game literally told her to uninstall, kys, and do much more toxic things. These 2 bans has made me want to stop playing league because of the toxic community (i might be but not as toxic).

All in all, I should've not been banned for this and if i get perma'd welp I might as well quit league for the stupid banning system not banning trolls, but instead me for being toxic. I've seen many people quit because of this on the boards, and also many people make alts to troll since their main was banned for no absolute reason which is just stupid. Honestly, im leaning towards either quitting the game or i should just troll like others since ya know its not bannable, as long as i don't talk in chat. My main is a 100 dollar account that wasn't even toxic as i said before and was banned. Welp that concludes this post. Sorry if my english was bad im just too lazy to fix my mistakes because im tilted of this ban that shouldn't have been issued.