People actually following the rules of Draft

I was just wondering if this is becoming a common occurrence for other people. Recently I myself have found numerous people who have no idea the rules of draft and blurt our their role as if it is Team Builder. Then when you tell them it is pick order and pick your role they troll and pick something that doesn't even help the team. Is there maybe a chance that we can add a report option for not being a team player and or trolling. This is something that very much so infuriates me because people even do this in Ranked which is becoming a MAJOR problem. I mean for example today I picked my roll as Support during my pick and our last pick was mad because he wanted support and said "he called it" then picked Bard into a Draven, Braum duo and nearly costed us the game. But who is the one to blame the Thresh because the Thresh was doing him actual job and playing support. While our Bard concentrated the whole match on collecting chimes and attempting to kill steal from the team. Maybe I am wrong in posting this but doesn't the rules state that choice of pick order is who picks their role?