Because for at least many trans-identified people, they want to have a partner who outwardly identifies as gay/lesbian not to actually have sex with them, but to validate that they are the sex they claim to be. That’s why they don’t care about whether it’s an actual homosexual person. It’s all about outward appearances and how they want to be viewed by others. Likewise, nor do they care about whether their partner is feeling fulfilled or not because they’ve defined themselves as the more vulnerable person whose needs must always come first. It’s very narcissistic.

I’m also reminded of the lead plaintiff in the Idaho women’s sports litigation where the lead plaintiff Lindsay Hecox posts openly on reddit as LindsayLovesLingerie and has identified himself as such. He posts copious amounts of sexual selfies in lingerie while not even trying to hide his male genitalia and fetishizes bagging a lesbian partner, but also says he doesn’t know why he’s obsessed with posting sexual selfies because he’s practically asexual. He’s a classic autogynephile who doesn’t know he’s an autogynephile because he doesn’t know that autogynephilia exists. He admitted that he started out as a crossdresser and stealing and wearing his mom and sister’s bras and underwear in high school. He has even posted in the cross dressing subreddit to convince them they’re trans. My point is that he’s obviously attracted to the idea of himself as a woman and wants validation that he’s an attractive woman, hence all the sexual selfies and wanting a lesbian girlfriend, but he’s not that interested in actually having sex with another person. So for him, the genitals of his partner may not even be that important if he can hold that partner out to the public as a lesbian.