Or you keep interviews in a professional setting so as not to discriminate against either. That's the whole point of being professional.

I'm a Christian, but I have no problem working for or with practising Muslims, as long as regular attendance at the Mosque is not a job requirement. I don't drink, but I have no problem working for or with people who like to drink, as long as regular attendance at the bar is not a job requirement.

Edit To speak to your examples: the religious person should have the professionalism to keep their views of homosexuality out of their attitude at work. Similarly, the homosexual should keep their views of religion out of work. Tolerance does not mean agreement. It means we agree to disagree and get along with each other despite the disagreements.