[ThomPete]

Yes, of course, there is.

The correct reading is that there is biological difference both between the sexes and inside each of the sexes.

This is a reference to the identity politics you see especially in 2ndwave/3rd wave feminism which claims that almost everything is a social construct.

He isn't talking about who is better just that there are differences.

[tdg]

My reply is here: https://news.ycombinator.com/item?id=16398806

[ThomPete]

And mine is here

What is it you don't get? He is referencing the people (mostly feminists on the left) who claim there are no biological differences and that almost everything is social constructs.

If you want to understand what he is talking about here is an example https://www.nytimes.com/roomfordebate/2015/06/16/how-fluid-i...