As stated in the document under consideration, conversion therapy is unethical particularly as applied to children.  There is no scientific evidence that any sexual orientation is harmfully abnormal.  On the other hand, there is ample evidence that a lack of support from parents and family is instrumental in self-harm, depression, and suicide among non-straight persons.  Conversion therapy blatantly denies "patients" needed support for their well-being and is absolutely contrary to the goals of social work and mental health.