Is there anyway to have a loss prevented

So i had a game where i had 2 duo trolls, and although I dont know if we would have won if they tried or not, I still feel that this just isnt fair. The zyra and donger went ad, and never went to a lane and instead roamed all game. I want these 2 people to be punished, but i wish that there was someway where i didnt have to be paired with people like this anymore. It really ruins my game play and wastes my time. Is there any way that instead of punishing me with LP loss for getting in a game with people who continually try to feed purposefully that i could get a loss prevented. Now i know im not the greatest league player in anyway. i feel that if riot could find a way other than punishing people for feeding, that they could somehow make the players who have to deal with the trolls, be compensated for their loss.

So with my rant complete... I would like to say i love the game RIOT, and i understand that you can't control how people act in game. I still think it would be for the better good if we could make it so that I and other players who get paired in champ select with people who from the get go want to troll that we could get something in return. I know this may not be the easiest thing to do, and it may sound like im looking for a handout, but i really am not. Just cant stand getting punished for having trolls on my team anymore.

It would be appreciated for others thoughts on this subject, and ideas for how we can help with this.

Thank you for your time.
XxTurbexX