Voters in Taiwan have rejected same-sex marriage in a referendum, a setback to LGBT couples hoping their island will be the first country in Asia to let same-sex couples share child custody and insurance benefits. The vote on Saturday, organised by Christian groups that make up about 5% of Taiwan’s population and advocates of the traditional Chinese family structure, contradicts a May 2017 constitutional court ruling. Justices told legislators then to make same-sex marriage legal within two years, a first for Asia, where religion and conservative governments normally keep the bans in place. Although the ballot is advisory only, it is expected to frustrate lawmakers mindful of public opinion as they face the court deadline next year. Many legislators will stand for re-election in 2020.