“Personal politics” is a vague phrase that generally just means someone’s views and priorities. There is nothing pejorative about it, nor in the way he used it.

In other words, Andreas insists the OS developer be referred to as “he/him” instead of not assuming gender.

The build instructions in question follow English language conventions that have existed for hundreds of years (and are shared by more than few other languages). All he did was decline someone’s proposed change that would have applied a very new convention regarding pronouns for a hypothetical person. This is not the same as insisting that anyone refer to anyone else in a particular way.

It’s also not unreasonable. We can ask people to adopt new conventions, but we don’t get to expect or demand it.

Change to a language takes time.

It’s textbook misogyny.

No, it is not.