View source for BlackLivesMatter

A highly successful social movement to empower the criminal black underclass and reduce the protection afforded by police in black communities.  The predictable result has been a manyfold increase in murders, rapes, assaults, and property crimes against black Americans.  Black Americans have also seen their property values plummet and their communities gutted as businesses move out.

For white people, participation in BlackLivesMatter is a form of virtue signaling.  Like all virtue signaling, it is stupid, which is why pointing out the actual consequences of the movement is considered unacceptable.