That is a great link, shows that third-wave feminism is prejudice disguised as enlightenment.
This afternoon, I've googled the phrase "sex differences in juvenile primates" to see the published literature on whether young apes and monkeys display sexually dimorphic behaviours, especially in the ways that they play. Overwhelmingly the answer is yes, they do.
Male juvenile non-human primates prefer rough and tumble play whereas female juvenile non-human primates prefer nurturing play. There are many studies that show this and some take into account and adjust for the fact that the apes/monkeys are, to an extent, socialised into this behaviour as well as having their behaviour determined by their chromosomes.
For example:
https://animalwise.org/2012/01/26/bo...s-in-primates/
The comments section for this article was hijacked by a feminist named JZGongen. Her views are very revealing, even though she claims not to be a 3rd waver.