As they may describe it or the so-called ethnic cleansing. In the insistence of the white people or mostly Europeans to occupy the large mass of the Mesoamerica. They wanted the resources, the land and expanding the territories they have. During these expeditions, it came along command and conquer. “God, Glory and Gold” was a known motive and drive for some Europeans to rise in power and take what they want especially in the early American lands as they fully invaded everything. And when they succeeded, they did the now known as ethnic cleansing. To get rid of the natives and made everything as their own. To gain control and conquest.
Hope this helps.