Peterson is calling Cuban racist and expressing how crass he finds the idea that the way people think is different because they are a different race.
Also if you have preconditions for the most qualified x for a position whether race gender, race and gender or other, it means you will almost certainly pass over more qualified people, because you have additional requirements that disqualify the even more competent people that you could have had for your company.
For example, Peterson decided that the best person to interview him about the social media training was his most qualified daughter, and it resulted in a hard to watch interview where the most memorable moment was how he lovingly and proudly looked at her, which really didn't advance his business goals. This is probably why he is a millionaire and cuban a billionaire.