While it is true that Black societies also engaged in black-on-black slavery, it is also true that every civilization on the planet has engaged in slavery, as it is a perverse condition and testimony to the cruelty of mankind towards his fellow man. As white-on-white slavery also exists/existed, that did not seem to be a relevant defense for German companies such as Bayer. To justify one's participation in such a depraved act by virtue that others also engaged in it reveals the shallow nature of even the most educated, who generally only revert to pre-packaged rhetoric for lack of a better constructed argument.
It is also the nature of some insecure, race-centric antagonists to point out the inventions of all 'White' societies as if they were 'American' inventions, without regard that Rene De Cartes, the French philosopher who co-invented analytical geometry (the predecessor of Calculus) would more likely identify himself as 'French' since the term 'White' is so indistinguishable as a descriptor (among MOST Caucasian countries except Americans) it is virtually useless. This insecurity also manifests itself in overt omissions of French superiority in science; the nuclear energy they are so proud of was discovered by the Curries, one French, one a Pole educated and living in France. At this time in the U.S., the French are currently viewed in a derogatory manner by Americans quick to claim their successes in a random division based on pigmentation, but also likely to refer to them as 'cheese-eating surrender monkeys' and point out their lack of military sucess. And it should be noted that during Currie's time Warsaw was in a part of Poland controlled by the Czar, who oppressed the Polish people and attempted to diminish their history and culture.
In conclusion, the very argument for reparations rests on the same logic the Jewish reparations were based. Not the slavery, but the profit. As you view the antebellum mansions in the South (a testimony to the power of profit) and recall the economic and manufacturing power the United States became as a result, you should be reminded that your prosperity also rests on the backs of millions of slaves, and not entirely on your own (or borrowed) ingenuity. This as a whole sheds light on some particularly unsavory 'White-America Society's' racist, elitist and sexist tendencies, seeking to diminish the contributions of others while exaggerating their own without regard to context or accuracy. Which is precisely why we're going to sue your arrogant asses! That you understand.
"I would rather have equality in society rather than slave reparations."
"White people would rather pay millions to kill Iraqis than pay a Black person any slave reparations."
"America would rather pay some fat person a large settlement for eating at McDonalds than to pay slave reparations."