I’m going to use a different abolitionist example to illustrate what I mean: when people advocate for abolishing the nuclear family, they are not saying “get rid of parental relationships” or “get rid of fathers.” They are identifying a specific social relation that is used as a building block of society and advocating for a world where it doesn’t exist, because its existence is the foundation of certain forms of oppression. The western social model where children are raised in private detached housing by a maximum of two parents (and realistically, mostly by their mother - a huge problem in itself!) who have complete control over their material, emotional, and social needs produces a fucking huge amount of adverse outcomes - abuse, trauma, dysfunction, poor health - the list is nearly infinite. And this family model also inherently reproduces class, race, and gender by virtue of the fact that children inherit those things from their parents and are forced to exist in those contexts. And even in individual cases where it doesn’t produce abuse, even if you have very good parents who are not abusive to you in any way, that social relationship is still oppressive, in the same way that having a cool boss doesn’t mean that wage labour is good. A society where children are not entirely dependent on one or two people for all of their needs, where they are free to form meaningful relationships with adults outside of strict categories of family, where children are not legally and socially treated like the property of their parents, where bloodline is not privileged as the dominant mode of intergenerational transfer of knowledge, culture, skill, wealth, etc, is a much better world!
“Gender abolition” is, I think, a poor term for a similar goal, and one that has a lot of reactionary baggage (baggage that is not coincidental - I think its imprecision as a term is useful for terf politics). Abolition of patriarchy is probably more precise - I am advocating for a world where gender is entirely non-coercive, where gender does not produce any oppressive social relations. You can engage in gender as a culture in the same way you can engage with different forms of art, in a way that is purely voluntary. This configuration does not prohibit the possibility of trans people; we would just exist in an entirely different form than the current western, medicalist, patriarchal, white supremacist context we are forced to navigate.
So yes, I think for gender to be truly emancipatory, it needs to be engaged with as a voluntary form of human culture, as a form of art that we do with ourselves and our bodies, and to do this we need to abolish sex distinctions on medical records, gender markers on state documents, gendered facilities, and many, many other things.