This is not a "change in culture" or describing people voluntarily changing their views. This is fascism in new clothes - "Kauft nicht bei Juden!".
The reason for authoring documents like the discussed is not to better yourself, it's to ostracise those who do not abide. Get them fired from their jobs, burn down their homes and cars, slander them so they may never ever dare to call someone obviously male "Mister". This is getting completely out of hand, and it will end bloody I presume.
I rename every git main back to master in my projects, I use blacklists, I will not give one foot to the batshit insane.