I am not sure as I am not trans. However, I am a masculine straight cis man and have no problems dating a trans woman and being open about it. I mean I guess people have their preferences, sure. Like while I am open to all kinds of women, cis and trans, I however can be shallow in other areas like not attracted to obese women. Does that make me fatphobic? No. I dont go around making fun of them and being a dick. We like what we like, and dont what we dont. It is transphobic though if you are outright against trans women, mock them, call them names etc... or on the other end fetishize them. But we all have preferences, i know i am not everyones cup of tea (tall, a little heavy albeit nowhere near as fat as I was once, bearded etc...)

So an example some straight guys would use is would you rather date a cis woman who is very masculine / trans man, but has the genitels you prefer, or a feminine trans woman. I am exclusively attracted to femininity, and that includes trans women. For me the answer is the latter not the former. I hate this argument some guys use, and yet deep down I know very damned well who they would choose if actually some scenerio like that came up.

Regardless, i am attracted to the woman as a whole person, not just for one thing or another.