There's a history of emphasizing a closer relationship of some racial groups to the rest of the animal kingdom as a way of othering them or implying their natur

There's a history of emphasizing a closer relationship of some racial groups to the rest of the animal kingdom as a way of othering them or implying their nature/capabilities are more animal-like and less human-like. So while it's technically true all humans are primates, the selective emphasis and its connotations is an issue. (Weirdly, there's some substantial overlap between people who take offense at the idea they're related to other primates and feel a little freer to emphasize the relationship of a human out-group to other primates, which possibly illuminates something about the problems.)