The point is that top level comment talks about something being predictive of job performance. In this case, leetcode. What if skin colour, ethnicity or gender

The point is that top level comment talks about something being predictive of job performance. In this case, leetcode. What if skin colour, ethnicity or gender were highly predictive of job performance? It doesn't seem very ethical to judge candidates like this. I believe the GP is not convinced by the "all that matters is that it's predictive of job performance" idea.