Comments pointing this out are kind off imho and completely miss the point.

The Atlantic slave trade in the americas was more about production than the Saharan slave trade. It was about finding the cheapest labor to boost profits from plantation style farming. The Atlantic slave trade was mostly about industrial slavery, an obvious precursor to factory style production.

Plantation style farming of course coming about around the same time that industrial capitalism started coming together in England and they exported some of this to their slave holding colonies and to the America’s.

The two slave trades are different even though they had similarities. They were both horrible, comparing slaveries with the goal of figuring out which was worse is a bit of a logical fallacy and ridiculous.

Similar to how an African slave in the North in the US had a different experience than the ones on a plantation in the US South. It doesn’t mean one experience was worse than the other, they were just different.