--WARNING: SPOILERS --
WRONG. BLM is REJECTED in the film. Even a White guy is preferred over Black racist "revolution". It is stunning, and the message is dividing Blacks nationwide, with the most liberal among them upset and angry at Disney and Coogler.
I went and saw the movie as well. The BLM revolution by force was roundly rejected - and yes, a white guy was seen as an ally above the main promoter of revolution by force.
To be fair, it is a comic book movie - but if one can suspend disbelief about Norse Gods and a suit that is years head of us technologically, you can suspend disbelief about a completely unknown civilization.
Interesting! Well, maybe not at the movies, but will catch eventually on Netflix.