As we know, the NFL's viewing ratings have dropped substantially due to their players insulting the viewing audience. If it was a "freedom of conscience" issue, then those who support the police, such as when the Dallas Cowboys wanted to put a tribute sticker on their helmets, would also be allowed. This bias shows what the real issue in sports is.
Contrast this with what happened to Steve Clevenger in MLB. His pro-police comments caused him to be suspended indefinitely and that was also due to "freedom of conscience" on his part.
Therefore, the real issue is towing the politically correct line in sports. Contact the presidential candidates and the debate moderators and ask for their take on all this!