They can protest, on their own time
Although it would be much more productive to be proactive in their communities, and their message should be about fathers raising their children and ending the cycle of poverty and despair. Nobody is holding them down but themselves.
At the end of the day, their protests are bullshit. There is no systematic racism being practiced in this country, and they have absolutely no idea what suppression is. When they're talking about suppression, it's akin to Venezuela giving the world advise about economics, or Iran giving advise about human rights, or Trump and Clinton giving joint lecture on the virtues of being monogamous. The dots just don't connect.
He started dating a radical black activist, he let her fill his empty head, he started sucking the year before the protests, he's a cancer for any team and that should be obvious to all at this point and that's why he's not signed anywhere to play football
I don't think this campaign is going to be a success, unless I really don't understand Nike's market and they really just want to sell products in a handful of American cities AND abroad