Partrise Cullors openly admitted in an interview in 2015, "“We are trained Marxists. We are super-versed on, sort of, ideological theories. And I think that what we really tried to do is build a movement that could be utilized by many, many black folk."
So it's just laughable to think that no one can question the ideological make-up of BLM or any other organization when they openly admit to the foundational doctrines that they have used to derive the core beliefs of their particular body politic.