It’s no secret that whatever process leads to someone being homosexual also increases their odds of skewing toward preferences and mannerisms more common to the opposite sex. The TERFs aren’t right that stereotypically male and female things are 100% the result of cultural stereotypes, it’s clear that men as a collective and women as a collective tend to skew toward certain aesthetic and scent preferences, careers, etc, that differ.
Nah, TERFS are right. It's all socialization.
People engaging in homosexual conduct have existed throughout different times and cultures, however, apart from caring for small children, there isn't a single preference or mannerism that is universally feminine or masculine. Pants, skirts, hair, silhouettes, color choices, romanticism and practicality, it all made 180s several times over. Even homosexuality itself was often strictly divided into the active role (a man's man, or at worst an intemperate coomer) and the passive role (feminine, weak, subservient, dishonorable). A Roman general who fucks cupbearer boys wouldn't be any less masculine than his colleague who fucks whores.
(You'll notice, however, that apart from youth pastors, fags aren't exactly rushing into childcare jobs.)
Another factor is people can have different interests, yet society encourages gender conformity. Fucking a person of the same sex is the most gender-nonconforming thing one can do. Having come to terms with that, a person feels less compelled to stay away from other "unseemly" pursuits. An openly gay man who takes up knitting doesn't have to worry people will call him a fag, or potential girlfriends will be put off:
https://www.reddit.com/r/casualknitting/comments/2givyk/straight_men_who_knit/
(Yeah I know it's plebbit, but it shows what plebs think. No one asks these questions about arc welding.)
Yet another thing (although it's less pronounced now that people marry later in life) is a homosexual understands from the get-go that he or she isn't going to get a life partner of the opposite sex with traditional opposite-sex skills. It won't be a "waste" for a lesbian to learn woodworking or electrical engineering, because she won't find a husband who'll be (statistically speaking) better at it. In some communities, Karens still tell lesbians they will "need a man for this", and lesbians don't like being told they need men.
Yet more evidence comes from first-world sex-segregated schools, where more children choose gender-nonconforming activities than children in (similarly prestigious) non-segregated schools do. Not having to identify out of the opposite sex gives more freedom to the more impressionable people.