I don’t know if eradicating the social constrains built into our very languages is as easy as creating fantasy social constraints that give more people more peace.

It would be essentially impossible to convince people to just stop using gendered pronouns. Some languages already do this, like Turkish, but it introduces more problems. It becomes much more difficult to differentiate between people in conversation if you use the same pronouns for everyone. People who natively speak Turkish, and other languages like it, learn to structure their sentences in ways that make it clear who they are talking about without the use of gendered pronouns. So not only do you have to convince people to stop using those pronouns, you have to change the way they speak entirely.

I think its a much better idea to have more than 2 genders, maybe 3 or 4, and randomly assign them at birth regardless of sex. This way you could differentiate between people even more effectively as well as remove the social constraints. This would also be extremely difficult and probably impossible to make happen, but I think its ideal.