rage quitters in ranked (remake has not fixed all the problems)

How is it fair that you get 10 people in to a ranked game and one gets a little pissy and leave the game now its a 4 v 5 and the 4 people pretty much have a guaranteed loss whats worse ill tell you whats worse you losing lp or a promo because someone decided to quit the game i feel like the simple fix would be to make something like remake where if someone is dc'ed for lets just say 3 mins then you get a similar prompt you get when you remake a game i mean still give the winning team the lp because its unfair to punish anyone but the person who left and for the losing team dont make them take an lp loss or even better give all the lp loss to the person who left if they dont have over 50 lp auto drop them a ranking i mean com on how hard is it to accept you are lsoing and starting playing safe a building tanky instead of just leaving the game