As a minority, have you ever had a conversation with a potential employer on the phone and things seems to be going extremely well? You finally meet potential employer & they have a look of shock that they were speaking to a minority?
Because some black Americans are able to sound so professional over the phone, it can be a task for the recruiter to detect their race. Companies have now decided to utilizes tools that will avoid this huge shock & awkwardness of actually having to interview a minority for a job. Due to new technology, they can now just see what you look like first. They probably won't even bother to listen to your well thought out articulate answers as soon as they see your black skin. They'll just turn off the videos until they come across someone that fits their "company culture."