Kaepernick has moved well beyond football. He's got 40% of the country absolutely terrified of him, and it is the 40% who can't distinguish lies from truth. If that doesn't qualify as a win, then I don't know what does. Kaepernick now owns decades of relevancy ahead, instead of scant years if he had merely been a quarterback.
If a franchise had understood that signing Kaepernick in the early stages of this controversy would have placed them on the right side of history, and they would have been applauded for that down the road, then it would have been an astute move, including for the Dolphins. The Castro stuff fades into the distance compared to being on the right side of history. But since so many NFL franchises are run by SAM types like Jerry Jones, you can't expect them to understand anything except here-and-now fear.