You seem to be missing my point. In 1860, Slavery was hugely profitable for the South and it was mere chump change for the North.
Lerone Bennett made waves when he charged that numbers of prominent Jewish East Coast families were involved in the slave trade. Scholars looked into it, and whaddayaknow ....
Hey, business is business. It has no morality and no allegiance except to the bottom line. That's why the values of the forum have to be checked by "blue laws". Otherwise, the Chicago Board of Trade would be trading virgins right along with their other commodities.