I am Quitting League

Why? Because every time I play ranked I get paired up with feeders and trolls. Like I am in bronze and I want to get out, but ofc there are trolls who are like, " I dont give a shit anymore since I am in bronze it doesnt matter if I am bronze 5 or bronze 1." All of my games I have a really good kda I go riven top. I get first blood every game, but after a while I go bot or mid to help them out. Instead they feed their ass off and start trolling. My last game I hate a nunu jg who went 0/7 and a leona who did fine, but when we had our two nexus turrets left she was the only left, but the whole team was coming back up in like 8 seconds. She had flash, ult, and everything she needed to at least slow them down a little. Ofc instead she just sat in the base and did nothing and costing us to lose the game. I know what you guys are gonna say, don't talk shit to your team mates don't call them feeders. Well fuck that because I want to win and if i am getting paired up with trolls or feeders that do it because they don't care I get really pissed. If they are trying I wont say anything, but if they make a mistake like flashing in the wrong direction and ulting in the wrong direction I get really pissed or if they ult but there is no one around. Like really? I know your in bronze but you have had experience leveling up to level 30. I don't know why people even do this. "Elo Hell"