In 2021 he once rejected a PR from a new contributer, which was to change the documentation from using the word "he" to "they".

Was it an actual new contributor or a drive by PR by someone who has no interest in contributing anything but their ideology?

Because there is nothing wrong in protecting your project from ideologues who do a drive by PR just to further their cause.

There is nothing wrong in preventing your project from being used as an vehicle for someone else's ideology.

LOL. The horror!