Every time I bring up transness to my Dad he quotes a book calling trans men “autistic girls”

Maybe I’m being biased, because I haven’t read the study/book so I don’t know what all it entails but every time I bring up the reality of my trans identity or what I think and feel he talks about this thing he wants me to read that his girlfriend put him onto, (she’s very supportive and I love her but she’s also a conservative and was worried about my status after starting testosterone), that basically states a correlation between transgender or GNC identity and autism in people born female. It’s so frustrating because instead of addressing what I’m talking about which is usually how being neurodivergent affects me (not even autistic, I have ADHD but those two have overlapping presentations and symptoms) or how I feel about my own trans identity. I know it comes from a lack of understanding and I’m okay with that but instead of listening he brings up this study and it feels like he’s bringing up something that discredits transgender identity and calls anyone who’s neurodivergent and trans “autistic girls” which feels like it’s playing into the narrative of “confused little girl who was tricked into chopping her boobs off and taking castration chemicals”. Again I may be biased because I haven’t read it but when he talks about it that’s the way he phrases it, he says something along the lines of “Well there’s this really interesting thing I think you should read, it talks about how there’s a high rate between autistic girls or born autistic girls and being gender nonbinary or trans or anything along those lines, I really think you should read it”. Maybe I’m being too harsh but considering he was recommended this by his girlfriend, who does work in childhood therapy but also had an aversion to me starting medical transition puts me off. I’ve been trusting my gut, but I want to doubt it because I don’t want to believe one of his main reading points for transgender reality is based in a flawed reading about autistic “girls” who are just confused or something