“The most important fact about 'reparative therapy,' also sometimes known as 'conversion' therapy, is that it is based on an understanding of homosexuality that has been rejected by all the major health and mental health professions. The American Academy of Pediatrics, the American Counseling Association, the American Psychiatric Association, the American Psychological Association, the National Association of School Psychologists, and the National Association of Social Workers, together representing more than 477,000 health and mental health professionals, have all taken the position that homosexuality is not a mental disorder and thus there is no need for a 'cure.'”