I know what this is. I have seen similar behavior during my time in the corporate world.
In my opinion, what we are seeing is a self destructive person who resents success. As odd as that may sound, this is not at all uncommon. You could call it, 'Jerry Maguire' complex.
He tried first with the kneeling thing. But once that became accepted, more or less, he now has to up the stakes. His goal is self-destruction, and he is not going to stop until he achieves it. I'm not sure if he is consciously aware of his ultimate fate. But it is clear to me.
If all of his antics do not get him kicked off the team, according to what I have seen in the past with people who have these symptoms, he will eventually quit, and walk away from his career. The point is, he will not stop until he is out of the NFL. He is suffering from a mental condition which drives him to do these things, until he no longer can. And that is exactly where he is headed. He will be out of a job and unmarketable. And it will happen very soon.