What's the larger problem, Blacks being shot at or killed by White policemen, or Blacks being shot at or killed by Blacks?

Everyone probably knows that answer but I don't see any "protestors" in the NFL talking about it.

The vast majority of people want to got to or turn on a NFL game and want nothing to do with players personal politics or beliefs. The games should not be a forum for it.
Add to that the "protestors" are doing it (disrespecting the National Anthem) on company time, wearing the company uniform, they are just alienating that many more people.