If that’s the case then fans would still watch on TV. The ratings will tell the real story.
I think ratings will continue to fall. Season ticket holders are "super fans", and are not going to walk away. The average viewer, even some who previously never missed a game, are not happy about being called a racist and seeing players express their hate for the flag. More of those people will be tuning out. Once people find better things to do on Sunday, it's hard to get them back.