Reasonable hiring is based on solely upon whether the candidate is both willing and able to fill the role. All the factors you listed are equivalent to or surr

Reasonable hiring is based on solely upon whether the candidate is both willing and able to fill the role. All the factors you listed are equivalent to or surrogates of that fundamental requirement. Or, in the case of leadership skill, are excess to requirements unless the role involves leadership. All races and sexes being equal on average does not mean that all candidates are equal on average. If they were, we wouldn't have interviews. Almost always, one candidate will be better. Necessary, that candidate will be a member of one race or sex. If any of the other candidates is a member of another race or sex, and that race or sex is one which the hirer is incentivized to hire people for, a less-suitable candidate will be hired if the hirer follows his incentives.