AFKS OR DIE

So in the past probably 2 and a half weeks, I have had an aft in about 1/2or 1/3 of my games.. I have dropped about 300+ LP and there isn't really anything I can do about it. I am in Gold V currently so hopefully i don't get trolled down from Gold III to Silver V because there will be a good chance I'll quit this game. Riot, Please make a solution for AFKS. There is literally no reason why teams should lose LP for an AFK. Its how the game is I understand but it really makes no sense. Just make it a loss prevented or something. Or lose 10 Lp cause Im currently winning 14 LP a game instead of around 20 because of the AFKS then i lose an AFK game and lose 20+ Lp it just doesn't make sense.