More than 210,000 people have signed a petition on the web site of the South Korean president’s office demanding that an “abominable” gay pride festival scheduled to take place in central Seoul this weekend be cancelled. The three-day Seoul Queer Culture Festival is marking its 19th anniversary this year and will include art exhibitions and a film festival. The highlight of the event will be the Seoul Queer Parade on Saturday afternoon around Seoul Plaza, the historic square in front of the city’s old City Hall that was the fulcrum of the March 1919 independence movement and the June 1987...