Earlier quoted context omitted.
You write: "The only nation in your list that benefitted greatly from slave labour is the USA". Quoting https://en.wikipedia.org/wiki/Slavery_in_Britain#Triangular_... : > By the 18th century, the slave trade became a major economic mainstay for such cities as Bristol, Liverpool and Glasgow, engaged in the so-called "Triangular trade". Further details from https://en.wikipedia.org/wiki/Atlantic_slave_trade : > Bristo…
Thank you for your excellent reply. I stand corrected that regard. However, the fact that the period to which your refer is some 250 years in the past supports my wider point that it is specious to claim that the the wealth of current-day first world nations derives from the historic use of slave labour.
How many years does it take for the benefits of slavery to disappear? I think it's far longer than you do.
British slavery meant more income to the government, which lead to a better navy, which lead to the ability to defend the triangle trade. A better navy helped advance British imperialism. How might Trafalgar have turned out with a weaker British navy?
British control of sugar production was built on slavery. But even once the slaves were free in a legal sense, the black population of ex-slaves was still at the bottom of the social ladder. The white landowners kept political and economic control for generations, and the profits went to Britain.
In the US, institutionalized racism, not just in localized Jim Crow laws and sundown towns, but also in federal policies like redlining, prevented generations of blacks from getting the same economic benefits as whites. (See Richard Rothstein's “The Color of Law”; interview at http://www.npr.org/2017/05/03/526655831/a-forgotten-history-... .) I know less about British history, but I do know how many thought the "Anglo-Saxon race" was above all others.
You earlier wrote: "Furthermore, the civil war that was waged to end slavery ultimately brought economic ruin to the southern States that had relied on slave labour."
I don't think you appreciate the full impact of slavery on the US or British economies. Quoting https://en.wikipedia.org/wiki/Slavery_in_the_United_States#A... :
> slavery was entwined with the national economy; for instance, the banking, shipping and manufacturing industries of New York City all had strong economic interests in slavery, as did similar industries in other major port cities in the North. The northern textile mills in New York and New England processed Southern cotton and manufactured clothes to outfit slaves. By 1822 half of New York City's exports were related to cotton
and from https://en.wikipedia.org/wiki/King_Cotton#History
> By 1860, on the eve of the American Civil War, cotton accounted for almost 60% of American exports, representing a total value of nearly $200 million a year.
Even though slavery was banned in the British Empire, Britain still profited from slave labor carried out elsewhere. The cotton mills of Lancashire produced a huge fraction of the world's processed cotton. You know where that cotton came from? The forced labor of American slaves.
Quoting now from https://en.wikipedia.org/wiki/Lancashire_Cotton_Famine :
> When the slave-owning Southern States of America demanded secession from the United States of America and declared war in 1861, the cotton supply was interrupted at first by a Southern imposed boycott and then a Union blockade. The South's thinking was that it could force British support through an economic boycott. ... Of the 1,390,938,752 lb of raw cotton 1,115,890,608 lb came from America.(80 %) ... Confederate flags were flown in many cotton towns.
Britain's economy profited from American slavery even until the 1860s, and they knew it.