I know these post sound snarky, but...
First off, English is technically a gender neutral langauge. There are two choices here which are to use the male gender as the neutral, which is sort of what happens when the singular "they" is used. There is also the neuter pronoun "it".
Likewise, the abbreviation "Mrs." at one time referred to "mistress" and didn't relate to a woman's marital status.
Secondly, I point out in one of my posts on this topic that Chinese, Finnish, and Swedish are "gender neutral".
So, you want to make an argument that Chinese culture is somehow good in relation to not being sexist or being tolerant to "non-binary" people? Likewise, Finnish is a pretty sexist culture.
The upshot is that if you don't want to exist in a binary world: stop using computers.