I think a lot of queer theory pushed by english-american academia spends too much time focused on dividing "sex" and "gender" in an entirely arbitrary and hegemonic way, perpetuating the idea that sex has some essential biological immutability, which not only holds back trans theory, it completely erases intersex theory.

So, for anyone interested in reading a bit more about intersex:

Challenging Lesbian Norms: Intersex, Transgender, Intersectional, and Queer Perspectives, Angela Pattatuchi Aragón

Queer (In)Justice: The Criminalization of LGBT People in the United States, Joey L. Mogul, Andrea J. Ritchie, and Kay Whitlock

Beyond Gender Binaries: The History of Trans, Intersex, and Third Gender Individuals, Rita Santos

Normal Life: Administrative Violence, Critical Trans Politics, and the Limits of Law, Dean Spade

Captive Genders: Trans Embodiment and the Prison Industrial Complex, Eric A. Stanley

Sex/Gender: Biology in a Social World, Anne Fausto-Sterling

Sexing the Body: Gender Politics and the Construction of Sexuality, Anne Fausto-Sterling

Expanding the Rainbow: Exploring the Relationships of Bi+, Polyamorous, Kinky, Ace, Intersex, and Trans People, Brandy L. Simula, J.E. Sumerau, and Andrea Miller

Intersex, Catherine Harper

Intersex Matters: Biomedical Embodiment, Gender Regulation, and Transnational Activism, David A. Rubin

Bodies in Doubt: An American History of Intersex, Elizabeth Reis

Contesting Intersex: The Dubious Diagnosis, Georgiann Davis

The Spectrum of Sex: The Science of Male, Female, and Intersex, Hida Vilori and Naria Nieto

Queer Embodiment: Monstrosity, Medical Violence, and Intersex Experience, Hilary Malatino

Body Guards: The Cultural Politics of Gender Ambiguity, Julia Epstein and Kristina Straub

Fixing Sex: Intersex, Medical Authority, and Lived Experience, Katrina Karkazis

Critical Intersex, Morgan Holmes

Intersex Rights: Living Between Sexes, Nikoletta Pikramenou

Transgender and Intersex: Theoretical, Practical, and Artistic Perspectives, Stefan Horlacher