[astine]

The distinction between a social construct and biology is artificial. Reading and writing are a social construct but learning to read and write at a young age has a profound impact on your brain structure.[1] I think what you mean to say is that there is no instinctual sense of gender identity that people are born with... that it is purely a learned identity. I'm not certain that is true as gender distinctions are pretty deeply ingrained nearly every culture around the world including most hunter-gather cultures, (The exact extent and nature of the distinction varies, but mere existence of an distinction is close to a constant.) and there is reason to believe that the sexual division of labor was key to the evolution of human sociality, which would make gender identity distinction hundreds of thousands of years old at the youngest. I'd be interested in any studies demonstrating that there is no instinctual component.

1. https://www.tandfonline.com/doi/full/10.1080/23273798.2018.1...