I have my own theory about these differences he's talking about: victim mentality.

If you've ever been in therapy then you know that your therapist puts in a lot of effort to make you stop seeing yourself like a victim. It is very important for people to feel like they have agency and control (in a realistic way ofc). You'll never go into therapy and be thought to feel like a victim.

Meanwhile from what I am seeing black people are encouraged and thought to victimize themselves. Even the high class, successful and rich ones are doing that.