Stereotypes not applying to everyone does not mean they apply to no one.

Check this out, for instance: https://www.cfr.org/news-releases/americans-lack-knowledge-international-issues-yet-consider-them-important-finds-new

“Less than half of the respondents were able to identify Afghanistan as the country that provided al-Qaeda with safe haven prior to the terrorist attacks of September 11, 2001, despite America having waged a war in Afghanistan due to this fact for nearly two decades.”

“Just over half could identify Iraq on a map, even though one hundred thousand American soldiers were in the country just a decade ago.”