How am I banned, with inters in my last 3 games played

Last 3 games had 3 intentional feeders one game all i did was laugh that he had 32 cs in a 30 min game. 1 cs per min and going 0/4 litterly trying to steal jung camps(ivren top) obv this makes me mad and i tell him to **** off for stealing camps. Next game adc goes 0/2 then says in chat im going to start inting, so i say how this elo is a joke and how he should just quit rather then int(apparently this is toxic) next game have a 1/15 mid. So frustrated at this point, but yet hold back toxic behaviour becuase i dont wanna be banned, untill he tells me i suck, at like 0/6 on his part becuase im not ganking, so i give him a little peice of mind on how i cant gank him tower driving at 0/3 0/4 and 0/5. Later ask him how its evem fun to play when doeing once/two times a min. Bot lane says thisnis toxic and asked enwmy even tp report me. To which i asked fpr the inting report this is when he is 0/14.

Proceed to get my account banned. How am i getting banned after i was provoked by him, and i have 3 inters in a row, mind you this is on a near 11 game lossing streak, one game won, with over 28 people not positive score, around 75 percent. I had recived punishment for behavior before, but i had stopped even reunlocking my honor/and getting many honors a game, but one slip with onters on my team and i get mad at them, and i get ban joke really.

Edit: I cpuld care less abput the bann its my bronze account, but im more mad at the fact that feeders can really get me banned after just reunlocking honor for being decent in games and theu are still playing today.. even the one that said imma int feed in game and went 0/7 and i reported along with team saying they would