Race, religion, sexual preference, family makeup and other items that are illegal to discriminate on just shouldn’t come up in an interview. It is illegal for the interviewer to ask questions about it and (to me at least) it is unprofessional to bring up. Can you do the job? Are you the best candidate for the job? Why? That’s what matters. The rest of it is irrelevant to the job and should not be discussed in any way, shape or form.