Damon, as the ultimate debater. How did he start losing the squabble at the end to the point where everyone disliked him? I know that its a part of his character were hes a pessimist. But he didn't even get his point across to anyone. Is this going to be something that he overcomes to become the best debater not just an ultimate or can he only debate on niche things and not overall such as a squabble among teenagers over if anyone will kill each other. What do you guys think?

I think he is a Narcissistic (a self centered person) it is shown at the squabble. he just says everyone talent is for attention and says that he is the exception after that its obvious everyone turned their back because who wanted to be friend with a Narcissistic.  Also at one point he said he's good at work while being alone this maybe because he doesnt have friend because of his personality