About the honorific, Mx.
The gender-neutral Mx. is used as a title for those who do not identify as being of a particular gender, or for people who simply don't want to be identified by gender.
The title of “Mx.” actually has a long history of usage within queer communities dating back to the 70s! The first known printed usage was in a magazine called Single Parent published in 1977, though it was very likely used in-community before that. It was first introduced alongside a gender-neutral term for Mister/Master, as Muster (abbreviated Mu.), and was typically pronounced as “mix” or “mux”. Trans and GNC communities have used it since its introduction as an alternative to the traditional honorifics of “Mr”, “Mrs”, and “Miss” and as a viable option to reference someone whose gender is not stated.
We hope in using it as a title, more awareness is brought to the option of one of several gender-neutral honorifics and folks get more used to pronouncing it and using it in their day-to-day lives. To learn more about Mx. vist Single Again Scrapbook and Merrian-Webster.