The problem is that the All Lives Matter "movement" is reactionary. Black Lives Matter supporters aren't saying that ONLY black lives matter; they're saying that black lives SHOULD matter JUST AS MUCH AS OTHERS. ALM is to BLM as Men's Rights Activism is to Feminism. Black people have been oppressed and dehumanized throughout the history of this country and prior. BLM is simply highlighting/bringing to light the abundance of anti-black racism in the US, not diminishing other issues or communities.
because ALM is putting everyone together see it says 'ALL'. BLM just says 'BLACK' which is putting black people of ahead of everybody.