Dozens of activists quit the Green Party as transgender campaigner is made head of its women's section
Exodus, involving at least 40 women, follows appointment in December of Kathryn Bristow, who was born a man but now identifies as a transwoman
Ms Bristow is seen as a rising star in a party famed for its 'wokeness'
She appeared in the 2020 Pink List of most influential members of LGBT community in her home city of Bristol
Her critics claim Ms Bristow's new role means women are losing representation within the party