If IQ is influenced by human development, such as education and educational institutions, these metrics could be heavily influenced by the political suppression of colonialism.

If someone from a certain ethnic group performs differently academically depending on their environment, nurture, then we can't deny that this has an influence on our attempts to measure intelligence.

This advanced structure, an educational institution, was built by native Muslims in Niger. The Islamic kingdoms of West Africa had literacy (Arabic) and enlightened civilization.

Similarly, consider the European Afrikaans who live in destitution in South Africa without access to the pillars of civilization.

IQ may be useful as a metric, but it is not a complete picture of intelligence and the influence of social environmental factors shows that nurture is undeniably a part of our attempts to understand intelligence.

I am a Shia Muslim and my IQ is tested in the top 0.01%, speaking anonymously. This is what Muslims build in Africa.

Our religion enforces 24/7 sobriety and a strict schedule of prayer while promoting education and hygeine.

Islam makes perfect sense. Worship God alone. Read Luke 4:8 and the First Commandent.