Dont confront, it only polarizes the two positions. Ask uncomfortable questions, such as, "What have the---- ever done to you, personally?" One of my brothers is/was a classic homophobe until he got aquainted with a gay bass player at a bluegrass thing. Now, everytime I see him enjoying this guys company, I just grin! The basis of all hatred, is fear. If we drag that fear into the sunlight, it dies. That is, assuming the person involved has more working for him/her than just the reptilian brain.