holding the game hostage should not be allowed

I just dodged a game, because our support was throwing a fit about being autofilled. I get it, you dont like it, but when you tell us you are a OTP yasuo player, and only do mid or jung, its not fair to anyone. basically what he said was he was going yasuo no matter what, so it would be best if mid or jung traded with him, because yasuo support wont work. that was what he actually said, he was going to do something that would intentionally hurt us unless he got his own way. I dodged, and have no way of reporting this behavior.