TOPEKA — A throng of angry queer and transgender children marched Friday evening on the Kansas Statehouse grounds in joyful defiance of legislators who promote state-sponsored discrimination. As the crowd of 200 children and adults gathered on the south side of the Capitol, individuals stepped forward, one by one, to deliver speeches bubbling with love or rage or fear. Some had recently come out, some had never spoken up, and some were high on gender euphoria. The recurring themes at the demonstration, which was part of the National March for Queer and Trans Youth Autonomy: They refuse to go back into the closet, and they are eager to vote.