We are all the same. Physically we mostly have the same bits and pieces within the same skeletal structure. Yet as groups of people we are vastly different. Culturally we create norms stay are dramatically diverse. As societies we value different things.
This is the anomalous of life .We are the same and yet we are so different. We are almost incompatible (as wars demonstrate) and then we marvel at the sights, sounds, and tastes of countries far from our own home.