https://ragdollx.substack.com/p/trans-people-and-bathrooms
TL:DR
Despite the hysteria surrounding trans people and bathrooms, several studies have found that nondiscrimination laws that protect trans people's right to use public facilities in accordance with their gender identity don't lead to an increase in sexual assaults. School officials, experts on sexual assault prevention and police departments all agree that protecting trans people poses no threat to cis women and girls.
By contrast, a large number of trans people, including kids, report experiencing harassment, humiliation or even violence when using a public restroom, along with other problems due to fear of harassment.
Trans youth who had restricted access to restroom/locker rooms were at higher risk of sexual assault, and they were no more likely to commit sexual violence. States that ban trans kids from using facilities consistent with their gender identity reported the same rate of sexual violence as states that didn't have such bans.
Sexual violence and suicide are also, themselves, strongly connected.