This book was very informative, and I did find it helpful. However, something felt off. After some contemplation, I remembered how "coming out" as an atheist was discussed. I'm an atheist in the LGBTQ+ community, and I found the author's comparison of telling people you are atheist or agnostic to coming out as LGBTQ+ to be unintelligent and borderline offensive.
Believing or not believing in a god or religious ideas is a choice. Being LGBTQ+ is not. Therefore, comparing telling the world that you are not religious to living as your true self seems off to me. Seidman kind of diminished the struggles of LGBTQ+ people when coming out. He directly mentioned how LGBTQ+ people have to come out, without realizing that being queer isn't a choice. Sure, atheists and agnostics may experience backlash for not believing in a higher god (or gods), but religious beliefs are a choice.
That was just my personal take on the book. Perhaps other queer people thought differently on that section of the book.