All of these mis-truths came about because of the blank-slate ideology.

That men and women are blank slates, and it is only because of their upbringing that they behave a certain way. This has been disproven, but not dispelled. Many people still try to force the world into this view.

Boys like things
Girls like people (for the most part, your mileage will vary)

Boys focus on one thing
Girls focus on all the things (usually, you know, often...)

So, when we talk about inventions. (thing + deep focus)
It is almost all men. There are a few women, but they are very masculine brain-types)

When talking about studying, i.e. University (single subject focus + subject of interest)
It is almost all men.
Except lately, there are many fields where men have been locked out of.
Where men cannot speak their minds or be excommunicated.
Literally have their lives and life's work destroyed for daring to speak up.

These are all truths, quite easy to see. Verified by real world examples/studies.
But, there is a population that want these to not be the truth, so it is hate speech to talk about them.