IMHO, Kaepernick's "right" to kneel during the national anthem ends when he puts on his uniform. His "protest" has never been about how minorities are treated, he's simply trying to figure out a way to call attention to himself, and to distract attention away from his poor performance.
Now his supporters want a boycott if he's not signed by a team:
http://www.foxnews.com/sports/2017/0...l-boycott.html
There's some serious irony for ya - boycott the league for not signing a guy who has clearly demonstrated he's not a team player.
The NFL should simply fine, then suspend, players who don't show enough respect to stand during the national anthem. Problem solved.