that's a very dumb statement considering no kind of therapy works 100% of the time
You're absolutely right. Which is why psychology generally is considered a 'soft science' by its most lenient of critics, and an outright fraud by its most severe. 'Gay therapy' fails not only because its claim to metaphysical surety is a scam, but also because it relies on the same old tried-and-tired quasi-Freudian theories that put all forms of psychology to the lie.
this whole tangential discussion of "therapy" and "ex-gay movement" is a straw-man, for I have never equated any "therapy" or any 12 step program to a cleansing by Christ. these programs are man attempted reformation, not Christ enabled recreation.
Most 'ex-gay' movements claim to be 'Christ enabled', and almost invariably rely upon heavyhanded moralizing funneled through a 'Biblical worldview' to be effective.
You have created a world where it is literally impossible for you to be wrong. Any homosexual Christians are reprobate backsliders who aren't
real Christians; conversely, anything in Christianity that can be considered true axiomatically validates your claims. You have effectively monopolized metaphysics.