English language and culture needs to evolve. Black should no longer be used in negative meanings. For example, The black sheep of the family, black witch, Black market. Blacklist. Black eye. Black out. Black box. Black mood. Black magic. Black death. Black face. Black hand. Black head. Black hole. Blackshirt. Blackmail. Blackleg. Blackball. Black mark. Black cat. black dog, blackhat. black ops. These negative ways of symbolizing blackness are in daily use in human circles of all kinds. Culture : wearing black in a funeral, black candles for witchcraft, black Friday, wearing black suits formal wear, black tie event, ...... use neutral colours to change it, make it green. bile is green. vomiting bile is a negative sign. Green sheep, green day, green mail, green market...... etc
