No it is called the Federal Government sticking it's nose in where it doesn't belong. They also have a right not to stand.
Faulty premise because the Federal Government has nothing to do with this. It's strictly business.
People have a lot of rights but there are also consequences.
The consequence of this particular action is annoying 90% of the people you depend on for your money.
For example, you have a right to smoke. It's legal. You can also be fired for it if your employer bans it.
The NFL is in a bit of pickle about this because so many of their players are Black and if they come down too hard, the players may be just dumb enough to retaliate and eventually bite the very hand that feeds them.
Hollywood elites can get by with stuff because of their audience but football players can't.
Most of their audience are good old boys and girls who love the Flag.