In the description of the Facebook event for their protest, Rally organizers said they wanted to "make it clear that we will fight to keep protections for Trans and gender non-conforming people and students." Doing so, protesters signal their disapproval of Trump's decision to rescind an Obama administration guidance that told schools to allow students to use the bathroom that matches their gender identity.
Protesters at Stonewall said their rally was about much more than bathroom access. They viewed Trump's move as an attempt to roll back rights for transgender Americans and an assault on the LGBT movement.
This is what the protest looked like:
Organizers chose Stonewall for their protest nearly 50 years after the riot that cemented the bar's place in the annals of queer American history. On the night of June 28, 1969, a police raid spurred a clash between protesters and police. Many consider the incident the impetus of the LGBT rights movement in America.