[Y_Y]

On pronouns?

https://stallman.org/articles/genderless-pronouns.html

On society in general?

https://stallman.org/articles/necessary-changes.html

For anything else, there's a good chance he's written about it on his website.

[mustafa_pasi]

I have not opened those links so I don't know what RMS is going to say, but what does any of that have to do with free software?

[Y_Y]

It has everything to do with free software in the sense that it's just application of the principles of the free software movement. rms wants information to be free because of his moral principles, and these same principles also apply to the world outside software. It's a whole thing.