I commented on an historic fact. Where do you see 'justification' ?And if the whole world jumped off a bridge?
Justifying slavery because other people did it?
Who was breeding slaves in 1830?
Did you expect the people who happened to end up in the americas to
BUCK THE WHOLE WORLD? Slaves still "breed" in Mauritania---humans
do BREED just as do pumpkins. Have you ever examined POLLEN in heat?
(by microscope--it is fascinating)