Which is longer, much less well known or clear. Guess what. Language should be clear and concise and its evolution has been almost universally in that direction. People in practice won't use these terms to accommodate an extremely special case
Even if you go with the assumption the holocaust happened like they say, These "insensitive" usernames don't affect everyone involved with WW2 since they're almost certainly dead now anyway or at the very least far too old to care about fortnite
That requires consciousness that no level of training data can provide. It is a technology we don't (yet) possess. The AI won't act like a female because it has a female name; however people may treat it differently if it has a female name
Chances are this individual would have killed themselves anyway. They just found a reason to do it through AI. AI doesn't have intent. They could have just as well killed themselves by surrounding themselves in doomer echo chambers and reading highly biased news sources.
How about "boy" and "girl"? Or if you want to incorporate some diversity, "Junge" und "Mädchen"?