Guidance published internally by both Sheffield and University Hospitals Sussex NHS Foundation Trust states: ‘Globally, many cultures recognise more than two genders.

‘As with sexuality, in the West binary categories dominate (male/female, gay/straight).

‘In modern-era Western history, these have been imposed on a human experience which is not binary through colonial incursion, when the values of one culture were imposed on another culture.’

https://www.dailymail.co.uk/news/article-12406055/Colonialism-blame-imposing-male-female-divide-society-NHS-staff-told-official-hospital-policies.html