Those too, but the negative impact and severe paucity of efficiency are quite real enough. About the only people still trying this today are religiously motivated quacks, with predictably depressing results, but even the historical attempts by people honestly trying to help as opposed to following the mandates of their imaginary friends in the sky had very bad results. Sometimes sexuality shifts over time. We have nothing even resembling a clue why, or how to do that deliberately.

If you tell me you know people conversion therapy worked for, I will not doubt you. People given chalk tablets for treatment routinely get better from very fatal diseases in double blind studies Not often, but it happens.

This does not mean chalk tablets are a panacea. Or, you know, medicine at all.