I mostly agree with your take, but it's important to note that, although genetic determinism is a crucial concept to understanding such question, it fails to explain the dichotomy of North and South Korea for example. Both populations share the same genetic makeup, however South Korea is a powerhouse, while North Korea is a dystopian commie shithole. By using this analogy, it becomes fucking obvious that without well developed market economy and the necessary infrastructure, which were provided by the USA btw, being genetically high iq is not enough. North korean dna is not different from their southern counterparts, but thanks to communism, they're stuck in the impoverished agrarian shithole. However, i'm aware that regardless of how much economic aid is being sent to countries in subsaharan africa, they will never be able to compete with the civilized world