Ms Duffield believes that biological females should have protected spaces where biological males are not allowed to go - such as domestic violence refuges and prisons - and she is against people being able to self-identify as trans to gain access to those spaces.
Sir Keir [said in an interview]: "We need to have a mature, respectful debate about trans rights and we need to... bear in mind that the trans community are amongst the most marginalised and abused communities. Wherever we've got to on the law, we need to go further."
Ms Duffield is not attending this week's party conference in Brighton, having said there were concerns for her safety after threats from activists.
Sir Keir said he had spoken to Ms Duffield and "she didn't want to come because it would cause a distraction from the ideas that we're putting forward".
https://www.bbc.co.uk/news/uk-politics-58698406
Pity; sounds like Canterbury has an MP with a brain.