“Because you’re basically taking away a constitutional right to freedom of speech,” he told reporters. “If guys wanna have a, I guess you would call it a peaceful protest, I don’t think it’s right to take that away.”

Bull****.  They can protest to their hearts content on their own time.  No one is stopping them from doing that.  It's only when they're on the job (as game days at the stadium are) that they need to follow their employers' rules... if they want to keep their jobs, that is.