General BBC coverage - https://www.bbc.co.uk/news/articles/ce3wdv7rg67o
Source of support for trans identified people above biological - https://www.politicshome.com/news/article/unison-challenger-andrea-egan-labour-government-done-little-working-people
QUOTE FROM LINK:
Another is standing up for trans workers. I wonder what she makes of Sandie Peggie, the NHS nurse who complained about having to use the same hospital dressing room as a trans colleague. She has launched legal action against her trade union, alleging that the Royal College of Nursing failed to support her. How would Egan react if a similar case came to Unison?
“I haven’t followed that case. But what were the real issues within that? I have trans friends, trans women friends; my nephew is a trans man. I wouldn’t have an issue. I’d want to understand. Because the argument can then develop to anybody saying… ‘Well, I don’t want you there because you’ve got blonde hair’ or ‘I don’t want them there because they’ve got blue eyes’,” Egan says.