You have to understand, "Arabs" are not all the same. They are grouped together because of the language, but genetically, it's a wide range of variety.
All the Top guys coming out of mid-east have much negro genetics in them.
i.e. Moroccan, Egyptian, and whomever else are all dark skinned, or straight up negro in appearance.
Jordan, Lebanon, Syria, Palestine they got average genetics, much like southern euro's.
GCC countries are inbred, disgusting, ugly, short f.aggots with too much oil money to throw around.
No way will they dominate American bb'ing, just simply due to the fact that they are foreign.