The Odum of Ala Igbo
Hail Biafra!
On top of it being ethically wrong, its just incredibly bad business to trade human beings for material goods like rum and guns lol.
Africa had a population of around 100 million people in 1600, this was the case in the mid 19th century. I guess when you sell 10-20 million people from the populous part of Africa, bad things happen.
If the Slave Trade didn't happen, it would've been much harder for Europeans to have conquered Africa.