No, it’s not. It’s a discussion of the trade in African slaves as a larger economic concept, incorporating regions of the world other than the United States and people other than Euro-Americans.
Yes, the majority of slave owners in U.S. history were white. Is there a larger argument in which this fact goes somewhere?
No the discussion was not started over the slave trade. It was a specific story of a man who was part of the last slave ship to the US.
It was very specific not general. Those wanting to deflect are trying to make it general so they can point else where