My thoughts on Kaepernick: He started a huge, national conversation, and due to a few different factors, a lot of people didn't like what he was doing and said so. I didn't agree with them but they're entitled to form their own opinions and vocalize them and I respect that. The NFL reacted the way a business does which is to protect itself and try to retain as many customers as it can. In doing so, it violated the NFLPA, which after trying to cover it up they paid a settlement for doing. They revised their flag and anthem policy and publicly supported athlete protests, and eventually revised their uniform policy so that athletes can make social statements with their apparel as public opinion turned. Kaepernick began a new career as an activist, and the NFL continues to play football games. He actually accomplished some stuff.
But, I don't really have a problem with how any of that went. It sucks that he lost his career over it, but being an NFL QB is as much a PR gig as it is playing ball. He knew that going in. To me it's "wrong" in the sense that I support what he was protesting on a few levels, including the idea that athletes shouldn't have to just "shut up and play" like they aren't allowed to think for themselves, and feel that people should have understood that and supported his choice to speak up. But it's not "wrong" in the sense that people that disagreed with me on that shouldn't have said anything. I support their choice to speak up as much as his, even if I don't agree with the message.