"There are some people who don't identify with the gender they are born - / the sex they are born in, they are often traumatised " Okay, so what? They can not identify as men all they like. It doesn't mean they get to pretend they are women and everything must be changed for them. Jane even included a suggestion of a third space before Starmer said this.
Many people are traumatised in some way or another. Someone who faces the violence of the British state may, though being born British, not identify as being British. Must the French take them, on this basis? Culture and identity are less integral and less immutable, but there we don't allow for self ID. No country, however liberal its immigration laws, will ever allow for that.
The debate is 'toxic' because 'the Prime Minister made a transphobic joke'. It's not toxic because of the 'no debate' or because of consequences for women (physical or sexual, or in terms of access to services and jobs). It's toxic because maybe someone felt bad listening to Rishi Sunak.
I'd also love for soundbites to stop identifying as answers to questions.