Sickle Cell Anaemia (SCA) is a disorder caused by a variant of a gene that affects haemoglobin, the oxygen-carrying molecule in red blood cells. If a person inherits one mutated gene, they carry the sickle cell trait but in the vast majority of cases will not develop SCA. But if a person inherits the mutated gene from both parents, then they will develop SCA.
Black people are positioned outside of humanness because humanness requires a fall guy. This will not change until the World as we know it is destroyed.