Black lives do matter, but not for the eponymously named group. The leaders of this group seek to maintain the problem, and set themselves up as the arbiter of the solution. A solution which will never materialize. These people want power, not solutions.
The police have done more to reduce black deaths than nearly any group in America. Black Lives Matter is doing more to return blacks to the dark days of the mid 1990s, then any group in America, including the KKK. Actions speak loudly.