Guitar's Cry
Disciple of Pan
You say it "requires an understanding of biases." Do you know what causes biases against race, religion, gender and sexual orientation? I have yet to read that psychologists can explain the phenomenon and know how to deal with it. I don't think we can expect businesses to do more than comply with the equality measures in civil rights legislation.
Psychology is complex and is always changing,but it does have some understanding of biases. This website breaks down some of it: https://www.simplypsychology.org/implicit-bias.html
There are some things businesses can do. See my post #19 which has an article describing how diversity training can be more effective.