You are happy to dismiss my first-hand testimony, so I fail to see why you think I should accept someone else's. Long-term incarceration, so called bisexuality, testimony and the FACT that there are ex-gays proves you wrong.
The fact that there are ex-gays means nothing. Many of them just become celibate, and perhaps the ones who are able to "change" were never really homosexual in the first place. In any event, there are very few ex-gays, while there is an enormous amount of societal pressure against homosexuality. That indicates to me that maybe it is not possible for change to occur, or at least extremely difficult and probably only possible for small numbers.
What do bisexuality and incarceration "prove"?
And testimony from who, saying what?