"True" gender? Again HOW MANY PEOPLE is this going to affect??? 3? 5? 10? Why would I CARE? And nice handwave on your part.
This isn't going to make Blizz more money, pandering to 0.00001% of their base the majority of which are IdPol obsessed crusaders for intersectionality and "social justice." It doesn't matter. I'll just block and kick anyone who tries to foist their identitarianism onto my game experience. I care about how well you play the game and how well your transmog ensemble is. I do not care about pronouns - I called people "he or she" based on the sex of their toon unless I've heard them speak or they've specifically told me whether they're male or female out of the game. I will never use "they/them" as a first person pronoun, because it isn't (and non-binary isn't a thing - hair color/cut and an elaborate costume do not break the "male/female" dichotomy in any any way shape or form. I only use "they/them" when I'm talking about someone and don't know their sex - just like 95% of the people in the world who aren't insane due to IdPol's religious delusion. Pronouns are used to talk about someone, not to them, so it's extremely pointless.
And lastly, this is a "pretend" videogame - I will do as I please and if people don't like me they can choose not to interact with me, as has been the case for 16 years. I will not tolerate or entertain IdPol and if Blizz wants to start imposing Radical Gender Ideology on their game, well, they can Get Woke and Go Broke and they frankly ban everyone but the couple hundred people who are obsessed with this absurd nonsense. And they they can see how long their cash cow continuous to exist.
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Citations needed, because I know for a fact you're quoting social sciences and not biology. Social sciences are soft sciences and have zero credibility talking about anything objective since they are 100% rooted in subjectivity.