Smart people ...
... will concentrate on the things and people that they like. And just stay silent on those that they don't.
I find my self in a position to hire people from time to time. And it's fair to say that I may come across some job candidates that just rub me the wrong way. And it would probably be better off for both of us to not associate professionally. But (I hope) I haven't left a huge trail of comments that could come back to bite me in the *ss in the form of a discrimination suit. Everybody gets the best opportunity as an individual that I can muster. That's my official position.