Pretty much every cac movie about them in Africa is a white savior movie. Historical accuracy is irrelevant.
Also the Game of Thrones and Vikings threads, both of which are about shows where cacs are slave owning warmongers are always busy on this forum and on twitter with conversations by Black people who love both shows. And with GoT Black people on the show are slaves and cater to whites but that show is apparently ok.
As for African Empires and leaders, from Mansa Musa to Nzinga, to the Dahomey, to the Zulu not one of them is clean on slavery.
And the Euro cacs didn't ban slavery to be nice. They did it because slave labor was cheaper than factory labor due to industrialization with factories so it had to be stopped.
And after they banned slavery they invaded and destroyed the governments of most African countries during the scramble for africa in the mid 1800's to early 1900's to steal their diamonds, oil, silver, iron ore, and land in general to create white minority countries or puppet states that served them economically.
On the larger point though it seems like the complainers want cartoon versions of history where Black Africans are saints and superheroes instead of the mostly morally gray individuals that they were including Black Americans themselves.
For example most Black Americans went along with slavery and didn't rebel. Day after day, week after week, year after year, and decade after decade. And those who did rebel were snitched on by Blacks who didn't really mind slavery.
That's just history and it's shameful and it can't ever be made right but banning movies about traitorous Black people doesn't solve anything. Instead more Black African movies need to be made so Black people can know where they came from and fix what can be fixed.