America and her people right now going through an identity crisis. There is currently no universal definition of What exactly makes you an American or what it means to stand up or sing the national anthem. it means different things to different people.
Kaepernick has every right to protest against social injustice. It's how he is doing it that people disagree with.
Now he is filing lawsuit against owners for "collusion" because no one is hiring him. The irony of life. So much for willing to lose out on money. He had no clue it was gonna come to this. Feel bad for the guy a little but should have seen it coming.