Sometimes they're funny, sometimes they're stupid. Your last one was stupid, no context or good setup, about what a junior high kid in developmentally disabled classes might use. That said, I don't actually have much attachment to pronouns, I ignore people pretty much regardless of whether they got it right or not.

As to docs, you are in error. MOST of the time what you write is true. Some of the time... well, not so much. All kinds of crazy screw ups can happen between the fetus' genetics, and the mom's endocrine system. Its very rare, and very unfun when it happens to be you that is the screw up, but you don't get much say in whether or how that screw up will be you. I fail to see the ethics in being cruel to people that are victims of such screw ups.