jim - // The distinction between the utter evil that was Slavery, and the utter evil that was genocide, strikes me as little more than quibbling. //
Once again I would have to disagree.
Because two concepts involve evil gives them something in common, but that is not the same as giving them a link.
// I suppose technically, yes, they are different, but in a way that I simply don't think anyone should care about. The end result was the same, and, to a large extent, many of the motivations are also. //
Once again I disagree.
The ends result was not the same, clearly because the motivations are not the same.
Slavery is motivated by a commercial desire to make money.
Genocide is motivated by an ideological desire to obtain racial superiority.
They are not connected at all, despite your insistence that they are.
Neither concept begins, or indeed ends in the same place.