Yes, the europeans showed up to profit-maximize the slavery process. That was the technological innovation, the boats helped, but the main part of the equation was translating huge amounts of human suffering into money, and then re-investing it. You’re hyping up Europeans technology up a little too much, chauvinists tend to. Europe was a plague-ridden backwater for centuries before they opted to sacrifice endless humans to Moloch. They “invented” all sorts of science to tell themselves it was the ‘natural order’.
Based on how you’re responding you do think this is a good thing though and are giving it positive spin.