Although boys have outperformed girls in exams in maths at 16 here in the UK for the last three years, girls had outperformed boys at maths for the decade before that.
You're not arguing that men and women are "just a bit different" so much as you're arguing that people should conform to gender roles which don't necessarily apply.
What about gay people in tech - Peter Thiel, Tim Cook, Ben Ling? Shouldn't they have been playing with Barbie dolls, or My Little Pony or whatever at a young age too?
The point they're trying to make is that you have very little evidence of that. Specially since girls of under 1 year old are already being surrounded with girly themes from their parents. They grow up being fed girly toys and mentality. Before a girl can even understand what a "toy" is, she is already surrounded by dolls in pink dresses.
So it is really the girl's interests that differ from the boy's interests? Or is it their parent's interests being pushed to them? You don't know this, and you have absolutely no evidence to indicate that it's their born interest to like one thing over the other.
I think the takeaway here is that: yes, there is quite likely a societally-imposed suggestion that men should go into software and women should not; however, that it's not just Silicon Valley's fault, and that the genders are really groomed essentially from birth for what they're "supposed to" do.
You're not arguing that men and women are "just a bit different" so much as you're arguing that people should conform to gender roles which don't necessarily apply.
What about gay people in tech - Peter Thiel, Tim Cook, Ben Ling? Shouldn't they have been playing with Barbie dolls, or My Little Pony or whatever at a young age too?