Soh will of course try to dress that horrific construction from her article up in professional-sounding language, but our duty is in fact to address the thrust of her argument, not whether she attempts to frame it in polite language. You might also recognize Soh from her work in the atrocious Matt Walsh "documentary" that pretends to be about women but is entirely about invalidating trans people.
To make this more clear: Soh's need to provide an explanation for femininity in a person who is assigned male at birth while denying the validity of trans people is only necessary for a person operating from a bioessentialist lens. The need in Soh is so strong that it leads her to make totally unfounded and ridiculous claims in that article, and it also drove her promotion of the discredited (and retracted!) pseudoscientific 'Rapid Onset Gender Dysphoria)' invented by Lisa Littman.
Surely you'd agree that if a natal male says he is a boy and when asked why he replies "because I'm attracted to boys", then the responsible reply is "it's okay to be a gay boy", and not "yes, because you're attracted to boys you are a girl." It's certainly possible that a child will persist in expressing and opposite-sex gender even after exploring identity as a gay boy and will follow through with transition. But surely the responsible thing to do is to make sure that the child first understands that there's nothing wrong with being a boy attracted to other boys. First, eliminate the possibility that the boy is identifying as a girl out of a gender-essentialist belief that boys are only attracted to girls and he has to be a girl to attract boys. If after that, if the child still expresses a cross-sex gender identity then explore transitioning.
I don't think Singal has ever said that all - or even a majority - of children expressing a cross-sex gender identity are actually just same-sex attracted cis people. He only takes issue with legislation in some jurisdictions effectively prohibit medical professionals from exploring a gay male identity in this scenario, and effectively mandate social affirmation the moment a patients expressed a cross sex gender identity.
Even if you disagree with the above, surely at least you understand why I'm confused about the allegation that Singal is promoting gender essentialism. His concern is that gender essentialism is being misdiagnosed as gender dysphoria, and people aren't doing enough to accept boys wearing dresses, being attracted to other boys, and behaving in "feminine" ways, and being too quick to say "well, you're a girl". Even if you don't agree with his claims about misdiagnoses, it's abundantly clear he is against gender essentialism.
1. https://resources.healthgrades.com/right-care/childrens-heal...