Any reasonable map would have at least 2 Black districts, so this case is explicitly about reversing gerrymandering by requiring another Black majority district.
Any reasonable map would ignore the racial make-up of the population and just be based on equal population. But both sides of US politics like the gerrymandering as it gives them safe seats they don't have to worry about and it destroys any attempt by Non- R or D candidates from having a hope of election.