Salem, a transgender activist in Dallas, started acquiring weapons in 2020 and found guns provided a way to push back against forces of suppression against transgender and other rights.Nathan VanderKlippe/The Globe and Mail It was intended to be a child-friendly drag show, organized by the owner of a craft distillery whose son is a performer. But the event in Roanoke, Tex., quickly became a showcase for a new contest for armed supremacy in American civic life, when a group of armed leftists, some of them transgendered, encircled the venue, masked and dressed in black, several clutching AR-15 guns. Nationalist and...