Who are “leading” professional associations? Their statements indicate they are leading in the wrong direction. The AMA says conversion treatment is not a medical procedure; which is fine, but this guidance document would ban discussions, which are also not medical procedures, and would therefore run afoul of Amendment 1.
None of the claims that conversion therapy is harmful specify the harm.
The Guidance Document is a bunch of hand waving and imprecise terms. The word “any” in re “efforts” is certainly too broad.
Really, if you want to ban actions using terms like “scientific”, you should apply the scientific method to your thinking first, then to your writing.