Inspiring words of wisdom from a 60-year-old white guy.

Wow. That's literally the dictionary definition of racism. Good job.

The discussion around this on other platforms is turning into a case against Diversity&Inclusion policies when it should be strictly seen as poor leadership.

Accepting arguendo that this means he hired some lesser qualified people, is there any evidence AT ALL that it was one of those people that are responsible for this?

All the video I've seen of this guy makes him seem almost suicidally indifferent to safety. There's nothing any of his subordinates could have done except warn and quit and it's my understanding they did just that.