i hate when people say this shyt
First off you've got the whole thing wrong, Kings weren't selling their own people into slavery, they were selling captives of war (wars usually instigated by cacs), and there understand of slavery was nothing like the cac mans. The tradition african system of slavery was based on debt, but slave and owner both know that freedom is expected once the debt was repaid, there was no stripping of original names, faiths, and traditions, unlike in the cac man version. what your leaving out is what they did to get these african kings to sell african captives into slavery. Lets talk about the cacs starting wars between african tribes and nations (alot of times supplying both sides with weapons), destroying food stocks and crops, etc.
There are very few things in this universe absolute and exact outside of mathematics, one of those few things is the fact that the cac man has caused destruction, chaos, and dispear EVERYWHERE he has gone, that shyts not even arguable