Permabanned For Getting Mad at People Trolling, Inting, etc.

I've played League since season 4 and I've had a few bans which were me getting mad at other people provoking me. I can't stand people inting and assaulting me. It happens pretty much every game if I don't gank and try to farm or anything other than what my team wants me to do exactly. They swear at me repeatedly and I usually try not to swear at them but rather tell them why I didn't gank (ie. I was farming). Everybody flames and swears at me and the second I say any swears back I get reported and either chat restricted, banned or in this case permanently banned. I had a malphite support who went top with me for the whole game after dying twice in 4 minutes in bot. I told him to leave at least 8 times and started getting mad at him. He continued to feed on purpose and insult me and our adc. In another game, I was playing jungle Garen in ranked, which is sort of off meta but it works pretty well whenever I do it usually. Anyways, I ganked about 5 or 6 times in 15 minutes but only got 1 assist. I was 0/2/1 at 25 mins or something like that. The whole game I was being flamed for "trolling" by literally just picking Garen. The whole team was swearing, calling me retarded, etc. I likely got 4 reports that game because the whole team was flaming me for simply choosing a non meta pick. It's ridiculous how they can perma ban someone 30 seconds after their game ends simply because they received reports. This is extremely frustrating as I've spent hundreds of dollars and really enjoy this game. But this is just unacceptable that others can be extremely toxic and I get banned for holding my own and retaliating. I'm extremely disappointed and angry at how they deal with these situations and it's quite honestly the dumbest thing I've ever seen.