Gameplay

Hello, I'm curious why Riot don't ban people who feeding hard, who acctly destroy your promo, win the strike, gameplay, day, sometimes and week, did u ever ask yourself why so toxic ppl? Because of those ppl who simply don't say anything in chat, who just pick champion and go to feed, am struggling in silver atm, few years ago I was diamond when I went to break, now I see it's impossible to go even in gold, so am curious is Riot keep them for that purpose, because I don't see any reason why they don't get any punishment for example 12h no ranked games, bann on ranked games only or such punish, this is serious problem, I understand bad game, bad day, but still we all have bad games, bad day sometimes week, why we must tolerate someone about it who even don't know that person, suppose be fair, on this way it's so unfair still don't know why you can't get ban for feed like it's hard to pretend ''I'm playing'' but bad score and only reason why guy don't get ban is because he is in silence. I saw everything but things such this it's totally unfair.