Let me say the problem of that man

 He isn't of the black race, if he have the same ancestor that had all the Cearenses, had darks, lights, he had the same ancestor than the white of Ceará, is because colour separate, but racially he is Cearense. Racially the race is homogen but not the colour, but the colourations are very look like. 

Rute Bezerra de Menezes Gondim