the vast majority of the world’s soy (about 85%) is pressed for oil in an oil press for human use. the byproduct of the press is called soy meal or soy cake, and would be a waste product if we didn’t find a use for it. currently, almost all of it goes to feed livestock, (about 70% of the entire crop-weight).
soybeans are used by people, and we feed the trash to livestock.