No, it is not. Show me a single human behavior, not physical or cultural artifact, but behavior, that is singularly unique to a race, as much as we can define what is a 'race' and its associated characteristics. And as far as culture and cultural artifacts goes, those are associated to NATIONS, not race.
Here is the proper definition of 'nation'...
- Noun
- A large aggregate of people united by common descent, history, culture, or language, inhabiting a particular country or territory.
- A North American Indian people or confederation of peoples.
The Americans, or citizens of the United States of America, is a nation and it is a racially diverse nation. When I was stationed in England, I had an English G/F and she said most Britons can spot an American, regardless of racial origin, simply by his demeanor and walk.
You have a problem with experience and observation to support cultural (not racial) stereotyping? Then read on because there are plenty of scholarly literature on it...
Cultural Stereotypes, or National Character? | Psychology Today
Define behaviour in this context......there are behavioral traits associated with countries that are less ethnically diverse, what happens then but to discriminate by race, but use culture as a proxy....silly thinking, an apology for discrimination.
Experience and observation can be a hopelessly narrow criteria, a 10 year old can tell you that.