The problem with talking about birth-sex socialization is that people (mostly cis but some self-hating trans ppl too) want to explain trans people's behavior, particularly bad behavior, by referencing their birth-sex.
Everything about the discussion is fucked up bc it comes from a fucked up place.
Trans people are often happy to talk about the nuances and complexities of our individual experiences, but all birth-sex socialization talk does is flatten those complexities into a caricature.