But take a moment to think about how that sounds. It is a generalization, based on non-factual perceptions, which can easily be seen as an insult. I dated a guy of Polish descent for a long time and his lips were very full and, well, sexy, but he was white. I really think that the lip thing is individual, as are most things about people. There are some traits that most of a certain group may have, but those things are just features.
Some dogs have long ears to help stir smells up from the ground to better smell.
Others have broader frames to better pull sleds. Their anatomical differences have a purpose. As for the human species, I was once told that the definition of a race is determined by the size of the skull, the girth of the hips and the length of the thigh bone. If we are wondering about dimensions of a particular race's anatomy, in this case lips, I'd say anthropology verifies there are anatomical differences helping to define races.