The term "BBC" is based on the original spiteful rumor that Black men were animalistic and people should keep their wives and children away from them. Blacked was used along side it, but as you can see, reclamation is a thing.
The N word needs no explanation for why you should never use it, yet Black people reclaimed it and use it friendly. Demi uses bad faith arguments against Blacked when she worked for WeFuckBlackGirls and she critizises the performers working for them for shooting so many scenes with White girls, while on the other hand, Demi's own ratio for shooting scenes with White dudes is the same.
It's the classic Black girls hating on Black dudes for dating outside their race scenario, just on a porn scale.