Europeans attempted to end the Slave Trade in Africa but in doing so would have crippled the existing African kingdoms which relied on slavery for their wealth and power. Ironically the last people trying to keep slavery alive were actually the people that were being enslaved. Europe had already outlawed slavery as well as the colonies but the end of slavery didn't happen until those African empires folded. The more you know. The Kingdom of Dahomey, the one they made the "we are strong and united" movie about was one such last kingdom reliant on slavery and who fought the French and the English to keep it alive.

The slave trade increased significantly during Tegbessou's reign and began to provide the largest part of the income for the king.

When King Ghezo ascended the throne in 1818, he was confronted by two immediate obstacles: the Kingdom of Dahomey was in political turmoil, and it was financially unstable.[16] First, he needed to gain political independence by removing the tributary yoke that the Yoruba empire of Oyo had over the Dahomey since 1748. Secondly, he needed to revitalize the Dahomey economy.[16] Both of these objectives relied on the slave trade. King Ghezo implemented new military strategies, which allowed them to take a physical stand against the Oyo, who were also a major competitor in the slave trade. He also put stipulations on Dahomey's participation in the slave trade. Under his reign, no longer would the Dahomey be traded, as they were under the leadership of his brother, Adandozan.[16] Dahomey would focus on capturing their enemies and trading them instead.

The British government began putting significant pressure on King Ghezo in the 1840s to end the slave trade in Dahomey. King Ghezo responded to these requests by emphasizing that he was unable to end the slave trade because of domestic pressure. He explained to them that the entire region had become dependent on the slave trading, so ending immediately would destabilize his kingdom and lead to anarchy. King William Dappa Pepple of Bonny and King Kosoko of Lagos took the same stance towards the British requests.

https://en.wikipedia.org/wiki/Dahomey

OP is a twink, I could make him my slave if I wanted

Who do you think built all of their elaborate cities? Oh that was Europeans, they're all rubble now