[mschuster91]

> A ton of books are published open-access (literally free) and a growing number of them consider public audiences as a target readership.

There's a ton of interest in history. Always has been in pop culture (with WW2 producing a looooooot of material based off of it, ranging from truly authentic such as Schindler's List to loosely affiliated such as the MCU), to be honest. And it's not just pop culture. No matter what, history tends to be a staple subject in schools, every town worth its name has some sort of local museum telling the story of said town. It's a self-reinforcing loop.

In contrast, there isn't much money to be made discussing gender identities so no one cares about it outside of the humanities and non-cisgender people, so where's the incentive for researchers to write "in layman's terms"?