That community is most notable for the innovative use of things other than pronouns. In any case human beings do not have "genders." Words have genders. Human beings have sexes. Vive la Différence.
Such acrobatic stupidity (one is reminded of a diver doing a one and a half gainer into a dry pool) as DeLuna's neologism will not "catch on" unless it is mandated, and the real language Nazis know that perfectly well. It will be coming soon to academia, bet on it. There tortured syntax is perfectly justified as long as it is the interest of (shudder) "gender and social justice."
But the control of language is not the control of thought despite some decades of earnest academic asseveration to the contrary. It isn't even really the control of language. That has, to my knowledge, happened only in one extraordinary case, and Latin has been dead for a very long time now.
Wryly and elegantly stated!