Not what I was responding to. The poster I quoted specifically mentioned NFL players won't kneel because they're not NBA players. I'm an avid NBA fan. They didn't kneel last year.
I mean, I think maybe the 5 most consequential people in the league (LeBron/KD/Steph/Pop/Kerr) regularly telling Trump to go fuck himself carries more weight re: where things stand than an unemployed backup QB (though given his marginal status, it obviously took more risk/courage on Kap's part). The two leagues are simply worlds apart socio-politically. This isn't really arguable. Kneeling is ultimately just a symbolic proxy for "America, what the fuck." Pop, who is very white and very much part of the NBA's power structure, does that in very literal terms and he is celebrated for it. That is basically incomprehensible in the NFL.