Thanks for your post.
I read a book several years ago: “White Gold”.
Truly fascinating.
It was about Moslems in North Africa capturing and enslaving people.
BTW - they tended to enslave white people and Europeans, but they didn’t discriminate a lot. Well, on second thought, they did discriminate a considerable amount.
According to Muslim tradition, Muhammad said that the best sex slaves are blondes. https://www.answering-islam.org/authors/shamoun/blonde_fetish.html. That may be the reason so many of the European women were used as sex slaves (harems).