The anthem thing is just the latest episode in the “dumb controversies” TV series. Something for idiots to get mad about(while the news throws red meat at them), and for football players to protest… what exactly?
If you aren’t protesting with a specific goal in mind (an actual concrete outcome) it’s pretty pointless IMO.
https://www.joincampaignzero.org/solutions/#solutionsoverview
I think these are some sensible goals.