Tell me what the Bills' coaches and trainers have told him concerning his body weight. I'll wait while you admit you don't know and are making assumptions.
He didn't have an all pro year and people jump on the easiest thing they can see as the reason why.
If you think the he's closer to being out of the league than an all pro, tell me which of those scenarios is more likely at the end of this year? Barring some kind of mental breakdown, injury, or crime spree, there is no way he plays his way out of the league by the end of the year. On the other hand, he does at least have the talent to be an all pro. But doubtful either one of your poorly thought out options happens.