It's mostly jumping on the bandwagon. Ask Jerry for a comment the next time a white cop shoots a black guy and I'd bet they won't take a knee in response.
Yes, it's nice that Trump's floundering brought this into focus, but it's never been about what people do during an anthem, it's about racism & injustice and no amount of kneeling changes that.
Players making their statement is one thing. Rich, entitled, white businessmen doing it smacks of free advertising.