Every black person i'v ever known had deep spiritual connections, Haiti specifically is known for their voodoo.
Children in general are typically more connected to the spiritual realm than adults.
Satanic "vampires" believe that accessing the lower chakra (root) through the anus you gain access to spiritual power and knowledge. Some even claim to have lived for hundreds of years and have their own universe.
I think they like the Haitian children because they have deep spiritual connections and the cabal feeds off that energy