Kalinka I also wondered why trans men were excluded from her dating pool
The next article is enlightening about this.
broadly.vice.com/en_us/article/kzd8yx/how-transgender-women-top-during-sex
The author is preop but likes being penetrated ("bottoming"). So men who have sex with the author are being asked to have anal. A lot of straight men would be very unhappy about being asked to have anal sex with someone with a penis.
The article is also very interesting as I think it shows that the reality of sex as a woman is never considered by these people. It's all about "femininity"
E.g. Octavia, a New York–based sex educator in her 20s, tops (penetrates) every which way, with people of all genders. She feels empowered in her femininity while topping a man because she feels she is fucking with his masculinity in more ways than one. She thinks something to the tune of, “ Take that girl-dick! Only a real man can handle this much woman.”
Or For Grace, a 21-year-old Baltimore trans woman, being with another woman was the introduction to topping that she needed..... “I am appreciating my femininity when I top as a lesbian. I’m being a strong and supportive woman,” she messages me. “I’m holding my femininity, not suppressing it.”
It's a very alien read to me. But then I'm a boring vanilla middle aged cis woman.