Not comparable to trans people, and does not have the staggeringly large body of evidence pointing to brain-body mismatch that is not merely self-identity but has to do with sex, gender, psychology, endocrinology and neuroscience. That's why being trans is also biological, because neuroscience is biological and the biological components of being a sex, while still an ongoing study, do appear to match trans identities. It is not merely a matter of 'how they perceive themselves.'
Neverminding for the moment that we have evidence of genderqueer, gender non-conforming, and third gender going back centuries because remains are taken with the context of how, where and with what they're buried, anthropology is remarkably bad at sexing remains. With something like a 30% 'undetermined' rate, and many major finds having been sexed incorrectly for decades.
Plus, not being able to find something in remains doesn't mean it's not biological. They won't find my autism in my remains either but it's still biological.
But anyway, this can be picked up in another thread more specifically about this topic. I'm out for now.