@Brokeback: Nobody is suggesting taking away the right to stand or sit. It has always been "sit, stand, or kneel" all you want. It is a tad bit different for the players since they have employment contracts, and they agreed to stand with their hand over their heart as part of the terms of employment. It's just that the NFL hasn't held them to it.
But! - The fans want to stand. The fans want the players to stand. The fans know the requirement is in the contracts.
Personally, I don't care if they sit, stand, or crap their pants during the anthem. It just bugs me that the reason they give is propoganda at worst and stupidity at best.
Why should the NFL respond to Donald Trump? Shouldn't they tell their customers that they are, in fact, wrong and should get on board with skipping the patriotism because ... well ... you know ... white supremacy and stuff? Why do you think this started with Trump?