Support mains in ELO Hell

I was playing some ranked games today and came across an odd issue. I seem to gain 20Lp when I win, and lose -19 when I lose. You might say... "Well win more than you lose and move up" However, as a support main, I find that games are often not in my power to carry. Supporting people who have fundamental mistakes in their game play, such as possitioning mistakes or worse attitude problems, is an up hill battle at best. So it occured to me that it would not hurt if support mains got a bit of a matchmaking buff. That is, if more than 80-90% of you games are as a support, and you are currently playing support, you should get matched at a slightly higher elo to increase the chances that you aren't supporting a team of just horrible players.

You may wonder why anyone should get a match making buff... Why not just force them to grind out of that elo if they are so good? Well, the answer is that the easiest way to climb is to play a different possition, and if you dont like playing like that its probably better to just quit the game than put up with being yelled at by your team because your adc is feeding his ass off and there isn't anything you can do about it.

Anyway, it just occured to me that this might be a way to both fix the issue with noone wanting to play support, and also remove the "elo Hell" for supports.