Conversion therapy is 1. unethical as it doesn’t meet an acceptable standard of care; 2. no social worker could have received accredited training for it. 3. it is immensely harmful quackery. As a licensed family therapist, I have seen such "treatment" destroy a minor's self esteem and causing lasting damage to families. Professional regulations cannot free people from stigma imposed by religious bigots and homophobic parents. However, you can combat such stigma by banning social workers from imposing CT on minors.