I think male female trans etc . can compete if analysed by sports branch basis. Male x female in contact sports like karate boxing taekwondo is not fair. However i think the difference is negligible in shooting, archerty, curling etc.
“Women tend to have thinner skulls than men, along with smaller neck muscles, which can predispose female athletes to getting a concussion,” says Sarah Menacho, MD, a neurosurgeon and neurocritical care specialist at University of Utah Health. “Data shows that women are also more likely than men to report concussion-related symptoms, and these symptoms can persist for a longer time period prior to recovery than in male athletes.”
https://www.scientificamerican.com/article/why-sports-concus...