Even if its not fixed or somehow we find a way to change it that isn't abusive in other ways, it would still be wrong for parents to make that decision for others imo. People deserve more bodily autonomy than that. The problem with PTGA is that it presupposes that being gay is wrong and that's the primary problem with it. Whether people can choose or not is irrelevant imo. There's also the secondary problem that the methods used to try to change children are often abusive in other way, but that's not inherent to it.