I work with a lot of 6th formers, and I have 2 teens myself. Let me tell you something, there are a small minority of non binary kids and trans and the rest of them are sick of having it rammed down their throats at school 24/7. They get it, people are different, be kind and inclusive, but they are getting fed up of being shut down if they challenge anything.
One of my DC actually said to the teacher "why do we have to have PHSE lessons on this EVERY week. We get it!" and the teacher agreed and said they have to do it. It is actually becoming counter productive as the DC are sick of it.
This student shouldn't have recorded this conversation, but the teacher was way out of line and should be sacked. Basically she was saying to the student that she is not entitled to an opinion and she can leave if she is not prepared to accept that someone can be a cat.
By the way, if you think you are a cat, when you are in fact a person, then yes you do need to be seen by a mental health professional.
Our children are being brainwashed. We need to wake up to this NOW.