Basically this, it's probably the most difficult thing to accept but slavery in Islam isn't a issue. Madow women would still be openly sold to get raped from Mauritania to Medina if the West didn't pressure the Arabs to stop.The hard pill to swallow is that Islam doesn't have a problem with slavery, I think it does have a problem with mistreating your slave but ownership of another human being is considered halal.
Even if the slave converts to Islam and he runs away from his master, it's a sin.
They banned slavery in Saudi Arabia 50 years ago, and 99% of the slaves were Muslims.
Tran Saharan slave trade was far worse than the transatlantic.