> Now let's look at some real-world examples: https://www.theguardian.com/guardian-professional/2015/jun/2...

How in the world is this article supposed to buttress your argument that women are somehow innately unfit for STEM careers? The article literally says "A recent study found that rather than too few girls opting to study scientific subjects or women forgoing careers to care for their children, the biggest cause of gender imbalance in Stem is cultural." Clicking through the link, you get to this paper [1], which is in fact a pretty thorough refutation of your entire position.

[1]: http://www.uchastings.edu/news/articles/2015/01/double-jeopa...