First, let me say I am not gay. However, there are a few things that I wish people--especially Christians--would understand. 
 
The former gay clergy on the show said he was able to change his sexual preference "with the help of God." That is the key phrase. Why do some gays go straight when they get religion and others still struggle with it? Well, why do some people immediately lose the desire for cigarettes/alcohol/drugs when they "get saved," while others struggle with it for years? Answer: That's the way God made them (read Romans chapter 9). Even the Apostle Paul talked about his struggle with sin, how kept doing the things he shouldn't. Please understand that I'm not saying the gay lifestyle is OK with God, but God doesn't always take away our sinful desires. I've been asked, "Why would God make someone gay when He knows it will send them to hell?" I ask them: "Why does God allow us to have ANY sinful inclinations when He knows it will send us to hell?" (My views on hell are another story ...) 
 
Also, for those who believe it's simply a matter of choice, here's a challenge. Try this: For one day--24 hours--will yourself to be attracted to the same sex. Then do it for one week. Guaranteed you'll fail. So how can you expect a person to willfully change his/her desires for an entire lifetime?