Race may not be working as postulated here. Not having minority friends can promote racism, but that goes both ways. Being a minority and not socializing with the majority much means minority STEM job candidates may not understand common assumptions, jargon, and other key details. Being disconnected from employers socially can lead to resumes and interviews missing the mark. Instead of calling for employers to be less racist it might be more effective to find more ways and motivations for minority STEM graduates to integrate with the subculture.