Parenthood doesn't imply fertility. From that link:
> Trans parents may form their families in a range of ways, including through biological parenthood, step-parenthood, adoption, fostering, and assisted reproduction, with an increasing number of options available to trans people wishing to become parents.
So what? Human societies have always and everywhere included multiple modes of parenthood. I don't understand this obsession with personal biological reproduction. That's not how human societies work. Adoption, fostering, etc are an important part of social sustainability and always have been.
> Trans hormones don’t necessarily cause permanent sterilization. Plenty of trans people have children
I was just pointing out that the evidence provided with the 25% number doesn't really speak to fertility, but rather all the possible ways of having children.
> Trans parents may form their families in a range of ways, including through biological parenthood, step-parenthood, adoption, fostering, and assisted reproduction, with an increasing number of options available to trans people wishing to become parents.