I love a bit of columbo posting.
It’s all just ridiculous.
We really do need to have the factual basis of biological sex established in law. There’s a sentence you’d never have imagined even 10 years ago.
People are male or female. And, no TRAs, the 0.2% (an estimate including women with PCOS - so casting the net as widely as possible) who have some kind of health condition that affects sexual development do not somehow make that untrue, any more than the existence of people with limb deformities etc does not make the statement ‘humans are a bipedal species’ untrue.
How people want to think of themselves and how they want others to think of them - their ‘identity’ - has nothing to do with this.
There are a whole range of circumstances in which the simple fact of someone’s sex matters - and it’s not OK to deceive others about it. Consent to sexual activity is one of the most fundamental of those circumstances.
There is a very good reason why we use the shorthand ‘sex’ to refer to sexual activity. Because the biology matters. It matters whatever your sexual orientation or preferences.