Liberals and the homosexual lobby have found two ways to explain away the fact that some people decided they didn't like being "gay" anymore.
1) Add more letters and labels. It used to be just the "gay" community. Then it was LG. Then LGB. Then LGBT. I don't remember what we are up to now... LGBTQ?
2) Use "No True Scotsman." Someone claims they used to be homosexual, but then changed? Well, just claim that they were never REALLY "gay" in the first place.