Olusoga is a Yoruba name. The Yoruba were not all slave traders, of course not, some of them became slaves. But it is true that some certain number of Yoruba were slavers, selling peeps from further inland to the ships.
Of course, go back enough centuries and we’re near all – certainly, people with any attachment to place are with the others of that place – tenth and twelfth cousins. But it is still true that as someone that one generation removed from Yorubaland that David Olugosa is more likely than I am – or perhaps you – to have a recent ancestor who was a slave trader.
The same would probably be true of Afua Hirsch with her Akan roots, of Nesrine Malik as an Arab Sundanese.
Wouldn’t it be fun if there were a “Who do you think you are?” investigation into those three sets of roots? You know, given how they do insist that slavery is the ineradicable sin upon an ancestry line?