ban mids who refuse to follow their laners

Mid laners who always let their laner roam and feed on other players are the cancer of this game. By their fault, their team is 4v5 half of the game. No, it's not because they're pro players. No need to start trying to desperately defend riot by saying "buuuut zed has more mobility nuuhhhh", you'd only be humiliating yourself, because you're talking about SILVER PLAYERS here. No, theyre just awfully bad. They have 0 fkn map awareness, skills, but, worst of all, they're cancerous little rats with the worst team spirit. They WANT their team to deal with their laners because they're incapable of farming 1v1. They INTENTIONALLY become a hindrance half of the game. And these people often manage to reach more than 50% winrate and climb, and that's how silver becomes the worse fkn plague. But they have no place in ranked. They're a fucking burden, theyre intentionally ruining other people's games and that's a bannable offense. So WHY THE FUCK ARE THEY NOT BANNED?