Dropping So Much LP For AFKs

I can't stand this league system. I drop 31 League Points from my promotionals from 2 losses in a row that couldnt be helped. I go even both games and we only lose because of afks in both games. It wasn't even skill based and the league system should be able to recognize that. It makes me very angry that I can't even get out of silver because of unreliable teammates, people who can't ward, trolls, and quitters. I swear dude bronze was way better than silver when it came to these things. I just wanna get out of silver hell, and it doesn't help I get dropped that many points for something that no one could fix on my team. Riot please get a system for this set up. Thanks. -JakeFromSubway