It's a systemic bias when you send out two resumes, one with a traditionally african-american name, and one with a traditionally white american name... And have 50% more callbacks for the one with the white name.
I have first hand experience with this. As a normal working-class white guy with poor parents and no connections (I worked my way through school), I had a hard time even landing an interview at first. As a social experiment, I changed my name/sex from Joe/male to Joanna/female, kept everything else on my resume the same, and reapplied to all the jobs that didn't want me previously. Every single company that rejected Joe was overjoyed when Joanna applied. In every case I got a email within the week wanting to meet and interview me. It was kind of eye-opening. I didn't follow through as "Joanna" because the sexist hiring policies were enough to put me off working at these companies entirely. I eventually found an employer that wasn't sexist and have been happy with them so far...
I often wonder why many Caucasian complain about foreigners taking jobs yet those complainers never bothered to learn an in-demand skill. Thus those nice high paying jobs are going to those who are qualified no matter their race, creed or sex.