MAPS 1. Map of the Tenderloin 22 2. San Francisco neighborhoods with historical locations of gay and lesbian businesses 46 3. Map of the ARC/AIDS Vigil site and its location in downtown San Francisco 107 4. Map of East Oakland showing the location of the Liberated 23rd Avenue building in Fruitvale 138 Figure 2. The rainbow crosswalk at Castro and Eighteenth Streets in January 2018. Similar crosswalks are installed in queer neighborhoods in cities around the United States and abroad. Photograph by Andriy Bezuglov. © Alamy. If the notion of a multicultural national community is revealed as always already fragmented and incomplete, the analytical lens of insurgent citizenship highlights how these fragments can relate to each other in contingent, uneasy, and constantly shifting alliances. Understanding social stratification as a structural part rather than an aberration of national citizenship helps identify precise moments when insurgencies in physical spaces expand the scope of what it means to belong to the city and the nation. This sense of belonging is the outcome of local attachments that people develop in physical spaces. 56 Employing a framework of 20 1 Spaces of Separation, Assimilation, and CitizenshipThe Tenderloin comprises thirty blocks in less than half a square mile in downtown San Francisco. Its physical environment is characterized by four-to six-story residential buildings, each occupying about half a block's depth, with commercial storefronts. There is a dearth of open space other than streets and sidewalks, all arranged on a regular urban grid, with longer faces on the east-west axis, as envisioned by Jasper O'Farrell in his 1849 vision for the development of a Gold Rush instant city. 1 By the turn of the twentieth century, it was home to many bars, clubs, and jazz venues, which together with the nearby Barbary Coast made up the center of San Francisco's famously rowdy nightlife. 2 The popular media has long tended to frame the Tenderloin as an insular vice district, but its public face at the southern edge, Market Street, is also the city's major transit and commercial corridor, with ample sidewalks, shopping, and performance venues catering to socially diverse audiences. 3 This physical environment, dense, timeworn, and squeezed between Civic Center in the west and the city's main tourist hotel area around Union Square in the east, shaped the neighborhood's character as a seedy, neon-lit adult playground.In black-and-white video footage used in the 1970 documentary Gay San Francisco, the Tenderloin's sidewalks are illuminated by the lights of shop windows, marquees, and vehicular traffic-a metropolitan look very different from typical representations of San Francisco's quirky residential neighborhoods on rolling hills in the national media. 4 As the camera traverses the streets of the Tenderloin, the narrator announces: "This is gay San Francisco. An inside look at the life of San Francisco's homosexuals. They work to conceal their sexual orientation by day, and only at night do they show the...