LP system and afkers.

So, I've started to get freaking pissed at league recently. It all started when I woke up this morning, ready to rank up. Excited and happy I went to join a ranked que and the first thing that happens when the game starts is; 2 people say they have to eat. They go afk for the rest of the game, making me lose lp. The next game someone went afk, again. A guy left and never came back. Then I played some more games and 2 out of 6 games people went afk, making me lose lp. Is this really a good system? I get punished for what other people do. Sure, they get punished but so do I. I've ranked down 3 ranks, today only. Do you think thats a good system? Because I sure as hell dont. I think the system should recognize of someone is afk and make that a loss prevented or something for the team with the afk(s) because this is jut out right stupid. Sorry if I sound a bit hostile but this is really getting on my nerves.