This Game is Garbage

This game is such pure garbage how am i supposed to win matches with the people i get stuck with it is just absolutely insane. I went on a bad streak of losing matches and I'm not going to claim that i played amazing every match but I played pretty solid most of those matches. I think there should be some kind of MMR that can see my stats and not only judge me on whether I won or lost the match. Some times no matter how good you do you are doing you are going to lose its plain and simple. I started out a match at 7/0 with jinx and still lost because honest to god my team was just that bad there was literally nothing more i could do. I just don't understand the thought process of the people that I have been getting stuck with. Not claiming that winning and losing isn't a very important stat but it shouldn't be the only factor of my fate of the players that I am going to have to play with in the future. I have tried so hard to stay positive playing this game but it is starting to be impossible how can I not be toxic when people just go afk, kill themselves on purpose because "it's just a bad match for them", or just honestly be as bad as they are playing. If I completely dominate a match and still lose because my teams horrible how is that my fault and why do I have to get put with people who are even worse the next match. Another quick comment riot should honestly tone down on punishing people for dodging a match. If I know I am going to lose because someone didn't get the lane they want so there gonna troll or people refuse to pick champions that actually have a shot at winning. I should be able to rationally decide that I do not need to play with that group of people and leave that match before it starts instead of wasting 20-50 minutes of my life on a match that I will lose it is unfair to me and anyone else that it happens to. I should be able to dodge 2-3 matches in a 24 hour period with no consequence what so ever.