I'm not sure that's true.
I've heard it said that "His Arab ancestors sold his Black ancestors to his White ancestors".
Barack Obama has no black American ancestry whatsoever. His paternal line is African, from Kenya, largely Muslim, slave owners and traders in the past. His maternal line is white and slave owners in the past. All of Obama’s ancestral connection to slavery is to owning them.
Any Negroes the Arabs sold to anybody would not have been ancestors to Barak Hussein. His ancestors might have had relatives who were sold by the Arabs.
Since Ovomit is 50% white, 47% Sub-Saharan Arab and 3% black, I’m trying to figure out who sold whom.
“There was a young man from Khartoum
Who took a lesbian up to his room.
They argued all night,
Over who had the right
To do what and with which and to whom.”
That limerick always comes to mind when I think of his ancestry. Sorry, but that’s just the way it is.