She never says internal factors are primary. The headline reads "...the final frontier." In the article itself:
The final frontier of gender equality may not lie in law or policy, but in these subtle, corrosive habits that continue to hold us back.
And, jesus, are we calling Ambition masculine now? Am I acting like a man by wanting to achieve things?
She doesn't say women need to adopt masculine norms, or that they have to be over-confident. Furthermore, ambition and confidence are just positive qualities for anyone. And, as a woman, I think it's kinda bullshit to separate unequivocally positive traits on a gender binary.
Actual quotes:
"This is not a flaw of individual character; it is the cumulative effect of biased socialization. From an early age, girls are often praised for being polite, agreeable, and well-behaved, while boys are praised for being strong, active, and independent."
"...teaching our daughters not just to be nice, but to be bold."
The habits she says are negative...
"...internal doubt, breeding hesitation, self-surveillance, and self-silencing."
And you said, in a women's community:
"The article comes across as having and underlying femmephobia, and feels a bit ignorant of how social issues work, which makes sense given her background is in physics and not the humanities."
I don't even know where to start. The article is a commentary on her experience as a woman, not a report. Every argument you made was a straight up misrepresentation of what this woman wrote, and you just went on to say she's got underlying femmephobia and discredit her experience and her credentials? Experience she backs up with sources in the article? And most of those sources were written by women? AND most of those women have backgrounds in the freaking humanities?
Goddamn. Girl just can't fucking win, can she?