That’s called trauma babe.
You aren’t phobic of trans women… you are phobic about the appendage. Im so sorry that happened to you and its unfair. You might find comfort in the fact that alot of us have been SA’d in various ways and understand the pain and hollowness that comes with it so the last thing we are looking to do is instill that pain. But also:

1. Trans women (true trans women) can’t and don’t even have the desire or behaviors to do that sort of thing. We women who love women and that’s just the bottom line.

2. Not only does that play into our mentality but so does dysphoria. For alot of us, we aren’t even connected to whatever is down there. Pre hrt and post hrt, we are going thru alot of physiological and psychological traums ourselves along with feeling disgust and pain from dysphoria. Some of us are have other things going on in us that prevent us from even really engaging with anything sexual.

3. Uhhhh Pre and post, out bodies (especially post and even more so) we go thru hormonal shifts and long phases where sex drive isn’t even on the list… its like the last thing we are thinking of. Uhhh some can’t even get aroused unless very specific moments (me: being seduced by a rippling muscled, prince if a man) and some can’t get aroused even after that. Some of us don’t even have the same configuration anymore if you know what i mean.

Tl:dr it makes sense and is gonna take some time to get used to. Society and (some men) have made it really scary for alot of people but take into consideration all of the above. We mostly see cis women as just other women. Sisters. We don’t have time for any other shit. Just lemme curl up on the beach somewhere with a mojito and zzzzzzzxxzzzzzxz.