First of all, the minute another person agrees to call any person by their “preferred pronouns,” your argument fails on its face. Stop this damn nonsense. The only pronoun that is even remotely accurate in describing a tranny is “it,” according to all the rules that govern the English language - rules meant to bring understanding between speaker and listener. If one does not know the binary sex of an animal or human, “it” is the ONLY appropriate pronoun identifier. Police officer: “Can you describe the person who knocked you down and stole your purse?” Me: “I didn’t get a good look. IT could have been a man or a woman.” Truth and language matters. It always has an always will.
My answer to this perverse nonsense is to ask the person, “do you have two X chromosomes or do you have a X and a Y chromosome? Most likely they won’t even know what you mean. Then tell them, it is the difference in our genetic makeup that determines a male from a female. Tell them to search chromosome and get back to you.