Ranked Problems

I am really freaking scared of ranked right now. I have had a good win rate for the last few games and I don't want to lose LP because someone leaves the game. So I have a proposal to Riot. Why don't we have a system that if one of your teammates leave the game you don't lose as much LP. You as a top laner with Ignite can't do anything about the fact that your Yasuo went 0/6/4 in 12 minutes and left for the rest of the game. And then because that enemy mid laner is so fed (We'll say it's an Irelia) she absolutely butt *ucks your bot lane. And because you are a top laner with ignite, not tp. And if you leave lane the Yorick destroys all of your towers, you can't impact the game. Then you get dove. A lot. And Yasuo's last words were gg easy.