That is a comically ignorant and ahistorical investigation of European colonization in the scamble for Africa. By your own logic, it should be moral for Africans to fully exterminate every single European in Africa without exception, including the Boers, without mercy.

Your position is that the boiling of white children is moral because of the crimes of their race.

Fortunately, I disagree with you.

Then on top of that, we have to consider that the enslavement of African peoples was not a demonstration of the white race's inherent welcoming nature. You've actually slandered whites by asserting that slavery (and the demographic extermination of the Caribbean peoples) was inherent to the nature of whites. Which is an awful statement on it's own, and a rationalization of black supremacist narratives.

Now of course, your contempt for blacks in Europe and America is still additionally ignorant, but it's not very likely you have the tolerance to deal with obvious evidence that contradicts your beliefs.

The thing is, considering your insane perspective, I don't really see how you can complain. Everything you've said, even if true, would simply be a rationalization for racial violence against whites. I can't really see how you could argue that blacks, who were removed from Africa against their will and placed into demeaning, abusive, and torturous servitude, shouldn't be able to form their own ethno-states and enact retaliatory violence on white populations for the white races crimes of slavery and racial violence.

It's not possible for you to argue against white genocide in Africa, but I think your perspective would only present a weak argument against white pogroms in America. I think you're stuck so deeply in your race hatred, ignorance, and friend-enemy distinction that you can't see that you've simply made a Melian Dialogue along racial lines, and you've already stated that whites are inherently meek, which (by virtue of your Melian Dialogue) means that they deserve their violent conquest.