If the goal is diversity of thought, why select based on physical characteristics instead of asking question about areas of thought that are underrepresented in the company? If the company has no communists, shouldn't you look for communists instead trying to link that thought pattern with a physical attribute? And does this purported desire for diversity of thought extend to all types of thoughts or just a narrow range? Is an entire rainbow of thought welcome or just some range of shades of purple?
Because the goal of DEI is not to hire based on diversity of thoughts. Else the places in the world where DEI was the dominant philosophy (university professors especially in the humanities) would have the highest diversity of thought. But in reality they are simply echo chambers.