I wrote extensively to the Board of Health/Medicine as to why conversion therapy is problematic and I will abbreviate my remarks here.
It is NOT: a free speech or freedom of religion issue; based in science; aligned with supporting respect for person and self Conversion therapy IS: pseudoscience (at best); harmful; damaging AND should be banned in practice by any licensed provider. It should also be considered child abuse and punishable for ANY person to use psychological manipulation to degrade and try to change the biology of another human. If a person wants to persue conversion therapy, then perhaps there should be a legal age of personal consent that would allow it from someone who is not professionally licensed as a matter of freedom of choice and religion. But, SCIENCE and ethics direct those of us who are health professionals to recognize that people are not gender binary or unisexed; gender identity, expression, and sexual identity are complicated and organs, hormones, and orientation do not always "match;" respect individuals; do not harm; and encourage people to reach their full potential. Conversion therapy does not meet any of these criteria and is not based in science. Those of use working in healthcare must stand up for science.