Ranked System

Why is it now that if you're at 0 lp in a division ONE loss with demote you? How is that fair? That one game could have a feeder/troll/afk and because of them you lose that game and get demoted?! What the heck. Atleast two or three losses at 0 before you get demoted. Come on now. Makes be so hesitant to actually play ranked when I'm at 0 lp since feeder/trolls/and people that just afk are common in my elo.