"It wasn't an "account" of history I called obscene, It was the history itself." - BenHemmens
You've got a problem with pluralism? Or are you excluding that part of history? What about abolition and suffrage?
"Colonialism didn't create slavery, it just made more systematic use of it than the inventors." - BenHemmens
More? Really? By what measurements are you deriving this "more"? Certainly not records. Thousands of years of slave records spanning every nation on earth are not, as far as I know, readily available. Records aren't even available for the modern slave trade. But what's most important is that slavery is an ethical problem, not a problem of volume.
"Kind of like Hitler didn't invent poison gas or Eichmann didn't invent the railway." - BenHemmens
Yeah, because the railway is ethically equivalent to slavery. Slavery has been common throughout the world. "White people" have never had a special monopoly on it, nor did they invent it. The only generalization you can make is that the people who ended slavery were mostly white.
Though, I seriously doubt this ethical position was the result of genetics.
"And to actually claim that colonialism had some unique role in ending slavery is grotesque." - BenHemmens
I guess reality is grotesque then. The anti-slavery movement began in England during the colonial period. England's isolation from its colonies, combined with the rareness of slaves in their homeland, created the conditions where a anti-slavery movement could gain ground. England ultimately went on to not only prohibit slavery (when most of the world did not), but actively policed it internationally in an effort to shut down other nations who still readily participated - mostly Africa, the Americas, and the Middle East. There's a reason why modern slavery is least likely found in former colonial powers and former colonies.
Colonialism also gave rise to pluralistic governance, the most notable, in my opinion, is the development of multiculturalism in Canada. Obviously, the problem of radically divergent populations co-existing reached a feverish pitch in colonies. These conditions prepared the ground for the development of the ethical position that recognizes racism as something that's even bad.
"What one can say is that in the last couple of centuries they haven't,
on average, had anything like the same chance to be greedy." - BenHemmens
I reject the notion that the successes and failures of the West can be summed up as "greed", as I reject the notion that greed becomes more ethical when there's less to be greedy over.