I very much agree with everything you said in your article, but seeing how you react to a notion of Africans participating in trans-Atlantic slavery, I must ask: Are you saying that all these accounts are either inaccurate or outright lies?

https://www.pri.org/stories/2019-08-20/willful-amnesia-how-africans-forgot-and-remembered-their-role-slave-trade

https://medium.com/@iranolaolowosulu/how-the-west-left-africa-behind-and-the-black-man-was-the-chief-slave-trader-e33911db0022

https://research.cornell.edu/news-features/curious-history-slavery-west-africa

"As the demand for slaves grew, the Portuguese began to enter the interior of Africa to forcibly take captives; as other Europeans became involved in the slave trade, generally they remained on the coast and purchased captives from Africans who had transported them from the interior." -- source