I think it's true that we shouldn't apply a strict litmus test and the most important thing in any judge is their capacity to provide fairness and justice to the American people.
One is necessary, one is a piece of fate, one belongs to the whole, one is the whole - there exists nothing which could judge, measure, compare, condemn our being, for that would be to judge, measure, compare, condemn the whole...But nothing exists apart from the whole!
Useful men, who do useful things, don't mind being treated as useless.
But the useless always judge themselves as being important and hide all their incompetence behind authority.