A little bit of reading comprehension here.

You probably just missed the part where I said "Probably not"

as White influence subsided these places reverted

What places? I don't want to search a whole bunch of African history if you can point me to the parts you mean.

The African slaves Whites owned were already slaves and they and their descendants would have likely remained such

Some perhaps. Of the ones that went to the US and Caribbean most were captured only because the whites created a market for them. They wouldn't have been taken in the first place without that market.

Christianity replaced a lot of this

As far as I know when Christians gained power they largely failed to accept the people who were already there into their churches or businesses. I'm not aware of any original peoples in the upper levels of the churches, or the boards of the Hudson's Bay Company or the Dutch East India Company. Perhaps you know of some?

You can try to educate Brown people about rights but that doesn't mean they'll give a *uck

Hmm. This shoe seems to fit. "prejudice, discrimination, or antagonism directed against a person or people on the basis of their membership in a particular racial or ethnic group"

But you're a Christian, right? So you can't be one of those, can you?