As far as I'm concerned, the US, Britain, France, Holland, Germany, Belgium, and Spain can also be included -- to mention but a few. They ALL profited either directly or indirectly from slaving, both before and after the 1807 ban.

Austria, for instance, ALSO sold firearms to the Confederacy.

All I'm saying is that a number of Britons were greed-driven hypocrites, just as some US citizens were (and Canadians too, for that matter). One of my own ancestors would go South, help slaves escape, bring them to Southern Illinois (free territory), cross the Mississippi with them into Missouri (a slave state), and sell them back into slavery. (He was not a nice person, and after the single visit to his sister in which he told the family this he was never seen again.) He was a hypocrite, a liar, a criminal, and 'most anything you can think of to call him -- and he was not the only one.