Why your team might actually be dragging you down in bronze (related to MMR)
So from what Ive read match making is based on MMR. MMR is really only based on the games you win/lose and what kind of players you were playing against according to your rank. Theoretically if a bronze played against challengers and kept winning, he would be getting insanely high MMR.
When you start getting in a losing streak because of the other bronze / silvers around you , your MMR starts to drop. Your actual skill in the game isnt relevant.
If you get the unfortunate lucky early on in your games to consistently get a few bad teams, your MMR is dropping. Generally the actually bad players will have a low MMR to begin with just for being bad and costing their team the game. But some of you decent players also get dragged down.
This is why its really important when you first hit level 30 and start your promos, you try your best to win. If you start to lose a few games you should either stop for the day, OR, play with some decent friends (if youre good).
Solo carrying a bronze game is a myth. If your entire team sits around at tower and does nothing you cannot solo carry a game. Its a team game, even if youre faker, if youre 1 v 5, there are three lanes, and you can only be in one of them.
This is why its very important not to complain too much if someone sucks dick. Youre probably just going to get banned because Riots staff/automated tribunal was made by a third class YORDLE. Some assholes arent cooperative and unfortunately thats gg. But if you can try to convince your team to take objectives in lanes, avoid team fights, and keep hit and run tactics for pushing lanes you have a slightly better chance
That... or just play with friends its so much fucking easier and the people who suck dick in game shouldnt be getting carried by you anyway.