Loss prevented

This is mostly a rant...i just recently got into gold (yay me) and on my third game in i get this toxic out of the gate mid laner who just trashes everyone in the lobby...once game starts they just proceed to run down mid and they continue to do so the entire game and part of the enemy team starts defending these actions by calling some of the picks on our team "Troll" ashe top/Kindred adc i dont see the issue here due to ashe causing the top laning to lane swap and well kindred did get to do much because of the game direction....this kind of behaviour is something id expect in bronze you know take the free win and dont care honestly this type of crap is why the need to bring in a loss prevented for these types of feeders and its very clear when it happens