Some years ago, I remember seeing an article where a black man - perhaps he was some sort of race relations guy, I can't remember - was asked the question "What American cultural institutions, if any, exist that are appealing to both whites and blacks?" and his joking answer was "NFL football."
Almost since the day that article appeared (probably around 2009 when Saint Barack ascended his throne) the NFL has turned deliberately away from white Americans. Obama-era social justice activists certainly noticed that NFL fandom was a unifying force in American life, and set out to undermine it.
Unified blacks and whites...
It used to, as I have noticed
At the Shop.