Lyndall Beddy, Kwanzaa and related topics

What is Jeffrey Tayler's scientific background, or who does he cite with the appropriate scientific background (anthropology, epidemiology etc) to make such a claim? Arab and Persian traders (in slaves and other commodities) are known to have traded into southern Africa, and some (non-Muslim) black South Africans have some Arab ancestors.

As for googling, well, I'm a researcher, and as such, google filters my selections somewhat (cookies and all). I was not able to find much of anthropological interest on the Tsetse fly using google (including through google scholar).

As for the claim that the Tsetse fly prevented such expansion, I find it simply strange - Arab societies had enough conflicts of their own, e.g. who is to be considered an Arab (the Arab vs Berber identity issue which still raises problems in North Africa, or Nubian vs Arab identity in Sudan, etc.), resources for the relevant raids, lack of acclimatization to local pests, etc. But the strangest part of the claim is that many of the ethnic groups that lived and live in areas where the Tsetse fly is dominant were/are pastoralists, thus shredding Tayler's claims. Then again, the 'chanting suras' bit is a highly emotional way of saying that they might have been Muslims (horror of horrors! Wat sal die dominee sê?), and as such, I strain to take such claims seriously.

As you raised the issue of Tsetse fly with regards to Arabs, you flatly contradict your Tsetse fly related claims about the inhibition of an Islamisation of Africa with your paragraph about slave trading around lake Malawi - it is in the middle of the present Tsetse fly belt. While you contradict yourself, I disagree with both your (conflicting) beliefs.

As for your previous claim, namely that Nigerian northerners believe themselves to be of Arab ancestry, I'm aware of a belief among the (Afro-Asiatic) Hausa that they have an Iraqi ancestor, but I've not heard of any such belief among the (Niger-Congo) Fulani. And how different is that from the belief among the Nguni groups that they have an ancestor, Nguni, who is said to have been an Egyptian general? Compare 'ewe' with western Afro-Asiatic 'aywa' (e.g. Masri Arabic, Tigray), and consider that ewe->jebo is more plausible than jebo->ewe linguistically, then if we interpret ancestor as founding leader of the ethnic group (or constellation of ethnic groups), the Hausa and Nguni claims are entirely plausible.

As for Kwanzaa, show that Davis is influenced by it. If you can not, your claim is entirely dishonest. If you can show that he is influenced by Kwanzaa, the onus is still on you to show that he obtained that belief from Kwanzaa (as opposed to reading anthropological and demographics studies), and to show that Kwanzaa is teaching something false. While I'm personally uninterested in Kwanzaa, it strikes me that you are simply using it to demonise rather legitimate scientific work (which appears to be entirely unconnected to 'Kwanzaa' in any case).