Take away the kneeling and they’ll find another way to express their contempt of the fans — spitting in disgust after the anthem is played, laughing and horsing around with another, virtual mooning of the fans during stretching exercises, etc., etc.
It remains to be seen what the revised rules will say. If they make it specific to kneeling, and they don’t address other disrespectful actions, then that will truly be the end of the NFL.
They need to use words like “must” instead of “should”.
The sorts of things you mention are already banned during game play, like the dog pee stunt that the moronic Odell Beckham pulled. I believe the fines and suspensions need to be strengthened. Beckham was fined $12K, for him that was pocket change. He should also have been ejected.
Start dealing out serious cash penalties and multi-game suspensions, and these thugs will clean up their act pronto.
It needs to be made clear that the same rules apply to pregame activities as well as during the game, and that is not the case now.