Whats the point of playing in bronze?

seriously? to begin with im not saying im the best player in the game and this is from solo q. but im so sick of being in bronze. ik every1 says that but the thing that really bothers me is no matter how good i do (pretty consistantly) one or usally 2 of my teams roles always feeds there lanes and there nothing we can do in a team fight with there fed team. Getting outa bronze must mean carry every game or it will never happn. solo que is pointless find a team and never play without them? idk what to do. guess ill just never play ranked without a full team. and im not saying im a diamond or anything but high silver? deff lol