"Biological (insert gender here)" serves as a dogwhistle for a lot of organizations that actively push trans bigotry. It gives a fake impression of a scientific take on sex that really hasn't been embraced by the scientific community for about 50 years at this point.
They aren't telling you what to think here, they are alerting you to a tool that organized bigotry is using and giving potential tools to subvert it. Once you see "Biological man/woman" for what it actually is (non-scientfic false categorization) it really can't be unseen.
Also - Can we stop with the calls that people are trying to control what people think? It's pretty lame. There's nothing about this interaction that is trying to force you. All that's happening is you've denied that a certain school of thought is valid. You have stated your reasons why you think it's invalid and now people who have taken upthat school of thought are defending their position. That's just normal discourse.
Give you a hint. When people tell you "they are trying to control what people think" that's actually doing more to control people - because it's asking someone to take it on someone else's faith that there's nothing to be listened to rather than engaging with the arguement yourself.
Technically that would be a defense if the god in question was actually as powerful as they say they are or that they are nessisarily good. There is always a possibility that Gods exist but are not on the hook to tell the truth and their goals do not align with humans.
A lying god telling the kids they have magic powers well beyond them and proving it like an uncle playing a dumb trick on the three year olds at a family reunion is a possibility. Maybe God exists and is just kind of an ass?