Well, I read quite a lot of it. As far as I can see, it's treating 'gender' as a choice anyone can make, and so can change his or her mind about.
So if a boy decides he wants to be a girl he should receive gender-affirming care; and if he then decides he'd like to be a boy again of course he wiĺl need to receive gender- affirming care.
i may have nodded off in places, but here, to save you from the same fate, is the concluding paragraph:
As young Americans are transforming conventional ideas about gender, they are also shaping the future. Gender non-conformity is becoming more common. More young people are thinking about gender as a concept that is flexible across time, or as something that isn’t anchored in what it means to be male or female.