Blacks serving in the SEAL teams seem to be a distinct minority, sort of like white guys playing in the NBA. Not implying anything just an observation.
The Navy has a very peculiar history in their relationship with Blacks. During the Revolution and the War of 1812, Blacks served in large numbers as Foremast Jacks, i.e. seamen. Few were rated as Petty Officers or higher, but they formed a solid component of the ships companies of American Men of War. By the time of the Civil War, most Blacks were rated as “Contraband”, a term commonly applied to property. This was because the Navy openly recruited runaway slaves, but then did not rate them as ordinary or able bodied seamen because of the way that they were carried on the ships books and what they were paid. In the years following the Civil War, Blacks were gradually restricted to only a few ratings, generally Steward or Messman. There were no segregated ships, but the divisions within the ship certainly were.
Blacks did not really take their place in all ratings and in all ranks until the Korean War and then in smaller numbers and later than what was happening in the other services. I suspect that Blacks who want to excel in the combat branches would choose the Marine Corps, Army Airborne, or Special Forces before they would opt for Navy Seals. Better chances all the way around.
how fail at being a Navy Seal
https://www.youtube.com/watch?v=awr8RWaIF4A
comments say that this is actually not a Navy Seal training.
But it underscores the fact that if you are an urban black, and have never really spent time swimming - you might not want to join the Navy Seals. You might look elsewhere. Navy Seal BUDS training is BRUTAL