I think the beginning of the end to the NFL started a few years back when Rush Limbaugh was blocked from buying the St.Louis Rams. He outed them as fanatical liberals with this move.
Between kaepernick shitting all over normal everyday Americans, and the NFL blocking the Dallas Cowboys from making a small symbolic showing of support to police after a group of cops were murdered, my feeling is the whole NFL can go bunkrupt and and go to hell.
If I wanted to listen to a bunch of liberals grunting and talking about nonsense that doesn't matter to anyone, I'd watch 'The View' instead of NFL football on Sundays.
You'll probably find it heartwarming that this year, NFL viewership is down by double digits.
Surveys have indicated that the single biggest factors in their falling viewership are the anti-American displays by multimillionaire players like Kaepernick, with excessive commercial time-outs following. Idiotic leftist pronouncements by owners and officials are in there, too.
Personally, I quit watching football years ago, when it became blatantly obvious that in many cases field officials were actively directing outcomes of games, rather than "merely" influencing them.