I made a collage of some of responses to the "but shouldn't it be ALL LIVES MATTER?" crowd.
Because pointing out and organizing around the fact that black people are disproportionately targeted, harassed and killed by police does not take away from the fact that other people are also affected, that the recent murders of police are also tragic, or that other lives are not also valued.
If you're more offended by the phrase #blacklivesmatter than the reality that prompted it, I would challenge you to reflect on that.
Collier Meyerson at Fusion: A guide to debunking the need for “All Lives Matter” and its rhetorical cousins
Kevin Roose at Fusion: The next time someone says ‘all lives matter,’ show them these 5 paragraphs