We are never going to invent a hiring process that hides peoples' identities entirely until it is over. It's an absurd fantasy, so let us please return to the real world.
We have two 10 person hiring committees.
One is made up of people with identical backgrounds.
One is made up of people with highly varied backgrounds.
Which one is more likely to discriminate against applicants?
You know the answer. I know the answer. And we both know how bad the answer is for your argument, and that is why you can't just answer honestly.