YES, it's what people do when they want to keep their jobs. I almost got fired even though i was a good worker but couldn't keep my mouth shut but i learned to shut up and do what i was told. Its called being a good employee.
He made his choice and expressed his first amendment rights and know he will suffer the consequences as the NFL expresses their right not to hire a malcontent who clearly just wants to continue his narrative of "oppression" .
and now i will express my first amendment right and say , I will not respect his stand nor your idiocy, you have the right to say what you want but that doesnt mean there wont be consequences.