Even if it "worked" by any criteria, which it doesn't, conversion therapy would be a wrongheaded and morally repugnant practice.

The fear underlying any imagined need for it is unfounded. 

The motives evident in creating such utterly ignorant and predatory a practice are despicable.

The arrogance displayed in all aspects of purveying it is disgraceful. 

By all accounts, its impact ranges from utterly useless to deeply damaging.

It is the slickest, smuggest form of snake oil, and has no place in the repetoire of anyone with a functioning conscience or a position of authority. Healer, convert thyself.