We are talking about averages. Obviously, there are weedy West Africans and Muscular Abdis. But on average, West Africans tend to have bulkier body types. They are mostly mesomorphs that build muscles easier. Horners are more much more likely to be ectomorph. Its why, horners dominate long distance running. We are more slimmer.
Denying this is delusional. Example, Dutch men are one of the tallest nations, does that mean there are no short Dutch men? Btw, i'm not coming for Abdis, just overall observations and I believe that West African and Afro-Caribbean women tend to be more toned than Somali girls as well.