More than that, they are actually breaking a rule of the NFL by doing so
http://time.com/4955704/nfl-league-rulebook-a62-63-national-anthem-rule/
Game Operations rulebook, not the game playing rules
NOW watch for the kneelers to all say “we made our point” or “we’ve made people engage in an uncomfortable conversation”, act is if THEY WON then tone down the protests.....
Of course no one is talking about the racist Black Power salutes being given by some players......