The petition mentions no material by name and is about anti LGBT+ conversion therapy.
Yes, but it doesn't exist in a vacuum.
Many people here are well aware that there is a push to get "watch and wait", or anything other than affirmation of trans teens labelled as "conversion therapy".
You're in the right place if you'd like to talk to a bunch of people who are deeply concerned about conversion therapy. But, you'll find that we're concerned that the trans narrative is effectively conversion therapy on gay teens. Loads of gay adults report they though they were the opposite sex while coming to terms with their sexuality in a homophobic / patriarchal society.
Given that the evidence shows that the vast majority of trans teens desist, left to their own devices, and that many of them grow up to be gay adults - why on earth would we want to sign something that is probably to do with cutting off options for those teens.
Trans activists say anything other that affirmation of a child's belief they're the opposite sex is akin to conversion therapy. But, I say that approach is conversion therapy in itself. So why would I want to sign your petition?
For a powerful story from a desister and why teens need to have access to narratives other than the transcult, see this:
4thwavenow.com/2018/03/12/baptised-in-fire-a-relieved-desisters-story/