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.

The original assertion was about fertility:

> 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.