Christians haven't just been nasty to non-Christians, they've also been nasty to each other! The treatment of the Anabaptists in the 1700s is a good example - they didn't believe in baptizing babies and were persecuted for it by sects who DID believe in baptizing babies.

Anyhow... what if all job interviews were conducted with walls, a microphone, and a voice changer between interviewer and interviewee? Then the interviewer wouldn't know if he/she was talking to male or female, black or white, and would have to hire a person based solely on merit.