Calling itself 'X' is a reflection of it's pathetically low intelligence. I've never really read sentences containing 'they/them' pronouns; these idiots don't seem to realize how ridiculous it sounds. People like this are too stupid to be walking around in public.
"X González is an American activist and advocate for gun control. As a high school senior they survived the February 2018 Stoneman Douglas High School shooting in Parkland, Florida.
González was raised in Parkland, Florida; a suburb of the Miami metropolitan area. Their mother is a mathematics tutor and their father is a cybersecurity attorney.
https://en.wikipedia.org/wiki/X_Gonzalez