Why doesn't this make sense? A biological male can be born into the world, at some point decide to live as a female and want the world to see him as a female and go through life as a female. Biologically, that person is a male. Save me the gender bs. Having a discussion about gender roles in society is one thing. An individual with xy chromosomes expecting the world to call him a her, is another. This guy has been born and alive for 69 years. If you want to have a discussion about how society views and treats older individual vs. younger, that too is fine and fair game. But expecting me and all others to play pretend and tell him he is indeed 49, because that's what he wants, is another when reality doesn't agree.
This is a long way of saying ‘I don’t understand the difference between gender and sex.’