I'm not assuming anything. The race controversies get a big play in some of the media and some circles in a few cities. That doesn't mean that it's a big issue with the majority of the NFL consumers. Frankly, few as they are, the polling among the football fans suggests that race politics in football is seen as an irritant. Irritating your customers is bad for business.You're assuming that NFL fans are degenerate bigots, they'll adjust. It's a gladiator sport where young men sacrifice their bodies for fleeting glory. Eventually they have to stand up, or take a knee, for themselves.
If Christopher Nolan were a no talent, bully boy mouthpiece, who deserves balls to the chin. He'd be Roger Goodell.