When we, as Black people use some words, we are subliminally endorsing the denigration of Black people. Even the word denigration, if you know the origin of it, you will stop using it. It originates from the N-word.

Don't say Blackmail. Say malign
Don't use blacklist. Use delist
Avoid using Black sheep. Say, prodigal child
Rather than Blackball, say, reject
Reject Blackmarket. Instead, use parallel market
Don't say Blackout. Say unconscious or power outage
Instead of 'paint him black', say spoil his reputation

Constant use of these words inadvertently paints an image of Blackness and dark colours as negative, evil, foreboding, and to be avoided, especially when they are contrasted with words that project Whiteness as positive, such as whitewash, stainless or spotless white, white as snow, or pure white. Stop calling people 'black devils'. Demons are not described that way in Scripture. It is scripting your mentality to hate yourself and your fellow blacks, especially when the mainstream media has turned Christ from an olive-skinned Semite to a blond-haired and blue-eyed Caucasian. Project blackness positively!