ok look having a preference doesn’t make you transphobic, but the wording on this post does make it sound like you’re harboring some implicit transphobia. Like, you’re basing this on a lot of assumptions. Lots of trans men do have penises, and modern surgery techniques yield good results. Also, is the penis really the only attractive thing about a man you sleep with?
For most people attraction relies on a whole host of factors. If you found yourself really attracted to a man who turned out to be trans, what would you do? How would you approach that conversation? You’ve gotta spend some time listening to trans ppl to figure out how to interact respectfully. In any case, you do you but like, understand loudly proclaiming your preference could hurt ppls feelings so keep tne conversation respectful and only bring it up when relevant.
And addendum, the wording of calling some parts biologically male/female is kind of iffy, like some non-op trans ppl are gonna say “hey, maybe you think i have the wrong parts but my whole body is biologically me, and I am certainly male.” Not everybody is gonna have a problem with that but try to understand the philosophy of why some ppl do and you’ll get trans theory much better