Lets rethink how people get demoted

I am not saying I should be plat, but I know bullshit when I see it. I have difficulty climbing out of silver strictly due to terrible team mates. I understand everyone gets them; however, I seem to have more than my fair share. The point of me writing this article is that if a summoner is at 0LP and loses the game, shouldn't his grade at the end of the game dictate whether he gets demoted? Also, should there be a buffer once somebody reaches 0 LP such as a 2 or 3 game buffer? I cannot tell you how many times I have been demoted when I lose one match. I provided a screen shot of my most recent demotion. See my team compared to me? Do I deserve to be demoted in this case? I get I can just climb back up to silver I, but I usually have to carry each game and the least number of games I can carry the better I will be. The difference in gold, levels, and cs is staggering.