How can you "choose a partner" based on whether they are trans or not trans? I don't think it's realistic in any way.
Here's the problem: how does courtship work? You meet somewhere, you talk, you text, you get together in some situation, you date. If dates are going well, the relationship advances to something sexual. In this whole process, where does the "trans" part matter? Only at the last step in this list.
OK, let's say you get to that step in the list, and you find out the person is trans. How will you respond? Oh, it's easy to say that you just drop them then and there, but are you sure? Maybe you've actually fell in love with this person? Even so, you can't say that you can't be attracted to a trans person, because, you know what? You have been, totally attracted to a trans person.
Or are you the type of person who can't love someone unless they have sex "the right way", the way you want? What if it was a female who wouldn't have sex but only gave blow jobs. If she told you that, would you dump her? Or is our attraction about so much more than just that?
So unless they tell you, or you have a taxi cab driver friend like Crocodile Dundee telling you someone is trans, I really don't know how you can "choose" a partner based on whether they are trans or not. A lot of romantic attraction happens before sex occurs.