All lives matter, therefore, black lives matter, and in this country black people have routinely been treated as if they don't matter. If you don't understand why they, as a community, are angry and upset about the injustice, then you need to spend some time in the ghetto and see how badly they are treated there. As a person with white skin who has spent time in both communitites, I can say without a doubt that the black community is treated terribly compared to whites when it comes to policing. They are stopped more often, illegally searched and seized, roughed up, killed while unarmed, and it happens ALL THE TIME. That's why this movement is happening, it has nothing to do with them being racist, they are STANDING UP *AGAINST* RACISM, and a lot of people of all colors are standing with them.