“I meant no disrespect,” O’Malley said in an interview on This Week in Blackness, a digital show. “That was a mistake on my part and I meant no disrespect. I did not mean to be insensitive in any way or communicate that I did not understand the tremendous passion, commitment and feeling and depth of feeling that all of us should be attaching to this issue.”

Judith Butler, a philosopher at the University of California, Berkeley, recently explained why some find it offensive to respond to the “Black Lives Matter” movement with the “all lives matter.”

“When some people rejoin with ‘All Lives Matter’ they misunderstand the problem, but not because their message is untrue. It is true that all lives matter, but it is equally true that not all lives are understood to matter, which is precisely why it is most important to name the lives that have not mattered, and are struggling to matter in the way they deserve,” Butler said in an interview with The New York Times. “If we jump too quickly to the universal formulation, ‘all lives matter,’ then we miss the fact that black people have not yet been included in the idea of ‘all lives.'”