Didn't the court throw cold water on using stats, that it is statistically unlikely all 100 best candidates for these 100 jobs were White male.
Most of the government jobs we are talking about are not jobs you and I apply for or even scanned for on Indeed. The president looks for and finds people he thinks can do the job, shares values, and works with well. Is it incredible to think that through recruiting they cannot find 3-4 Blacks/Hispanics that fit that as well as any White using everyone in the nation as the pool?
Because any hiring is going to have bias. Guess what, as an older White middle class Midwestern male I am most likely to be comfortable around White middle class Midwestern males. There IS a bias in any hiring system because of that.
Oh, as to the question as to where it stops, nuclear scientists, we have that settled via the term protected class