Why are English-speaking countries so obsessed with trans people?

It seems like Brits and Americans turn every conversation into "biological women" from randomly bringing it up in politics to apparently a new trans exclusionary gym in London. I'm not aware of any spaces like that here and I don't remember seeing trans people come up in any discussion that isn't about us. It's so strange and I really don't understand where this obsession comes from.

Edit: I also experience most transphobia in English online and honestly this extends to veganism and even cyclists. Cyclist is not a word here just a thing many people do and only a few weirdos have an issue with vegans existing.