For a serious answer, as someone who grew up in a family that couldn't afford cable television. DBZ, Sailor Moon, and Pokémon all aired on network, antenna, televison in the morning before school or after school throughout the 90's.
So it's probably a function of income more than race. All the poor white kids I grew up with worshiped those three shows too.
There's a scene in the netflix show, Daybreak, where RZA as a narrator explains how eastern warrior culture became popular in the black community. Which is what i thought of reading your question. I couldn't find a clip but here's an article about it, and the relevant quote: