What’s the reason for believing/thinking/hoping that conversion therapy (as defined by going from gay to straight) actually works when there’s no evidence to support it?
Some things should be taken as a matter of faith.
Is this one of them?
Nor will there be any evidence to support it, whether a successful way to do it might be discoverable or not, because even trying it will be deemed a crime. One wonders where we would be with, e.g., psychotropics today (lots of trial and error in their use, and still going on) if researching and prescribing them had been criminalized decades ago.
The inherency and immutability of homosexuality is, indeed, taken as a matter of faith despite some fairly significant reason to believe it is neither, or at least not in all people who get into homosexual behaviors.
Psychology nowadays, of course, has but one approach: Your homosexual (or transsexual, for that matter) drives are inherent to you, probably something you were born with, so learn to embrace it and, in the process, reject all things that suggest to you that you should not and thereby cause you to feel stressed.
It’s a quasi-religious subset all its own, but is one of those things that bobs to the surface in societies in which religious faith and its tenets are rejected. Wasn’t it Nietsche who announced that “God is dead”, and then set out to posit “self” as the replacement; a “self” that rejects all notion of objective good or evil and selects its own subjective “good”? In opposition to the Christian view that there really is an objective good, which, in man, is that which serves the purpose of bringing man to his proper "ends’ (purposes for existing), the Neitschean view (and that of many others) is that “good” is subjective; i.e., I choose my own according to what I believe will fulfill my desires, and is the only refuge from radical nihilism.
A profoundly terrible view, but one that has had a tremendous effect on western societies. I recall reading a waggish comment by one academician, in which he asserted that the only saving grace in American culture is that it’s so superficial Americans don’t learn such notions in full and therefore don’t go into the depths of individual and societal despair the way Europeans often do.
But those currently in power, it seems, are determined that we shall all undergo a “change of religion” and turn to worship of “self”. And, it must be admitted, they are enjoying some degree of success in the endeavor.
There are, however, countervailing voices. De Tocqueville, for example (though long ago) felt there was an inherent and quite firm religiousness about Americans, and a spirit of self-sacrifice of the ego that was, at the time, virtually gone in Europe. Some in the philosophic and religious communities have not given in to relativism and seem to get further and further away from the “official religion” of state-sanctioned relativism. One may be forgiven in hoping an eventual denoument will resolve the issue in favor of the former.