Then how did countries with de minimis involvement in the slave trade like Germany, Italy or Austria-Hungary do so much better economically than Brazil? Four to

Then how did countries with de minimis involvement in the slave trade like Germany, Italy or Austria-Hungary do so much better economically than Brazil? Four to six times as many slaves went to Brazil as to all of the modern USA. The Trans Saharan slave trade where Arabs enslaved Sub Saharan Africans started earlier, lasted longer and enslaved more people than the Trans Atlantic trade too. If slavery was the reason for the Industrial Revolution why aren’t we discussing this in Arabic?