The course is exactly the opposite of what you fear it is. "The Long Struggle against Slavery" refers to the struggles of black people against slavery, and continually critiques the idea that white people were the main force in abolishing slavery. It also argues that the blacks in Africa who captured slaves had little choice in the matter, and that it was the European demand for slaves that turned a relative harmless war ritual into a massive destruction of Africa's cultural infrastructure.

I've been a prof myself for the last twenty years so I usually teach myself through reading. At Marley K.'s request, I complied a list of my favorite readings on this topic, which I posted as a comment on one of her articles. Not everything I've read on this topic, by a long shot, but a good sample. https://teedrockwell.medium.com/your-wish-is-my-command-marley-hope-these-help-ead716091d85

I have no financial stake in this course. I just really liked it.