Black lives matter group has legitimate issues?

The President gives comfort to rioters and criminals by saying Black Lives Matter protests bring out legitimate issues.  Where do they point out that blacks are victimized by crime 6x more than whites, by other blacks?  Do those lives matter? The violent crime rate for offenders is 8x higher  for blacks than whites (don’t confuse rate with population). He will have trouble convincing me that the claims are legitimate when he’s never defended Chicago’s blacks this way. He also can’t convince me that he has done anything in 7 years to address these concerns.

http://www.progressivestoday.com/obama-defends-blacklivesmatter-and-says-they-must-be-taken-seriously-video/#!