Claudia Sheinbaum was elected Mexico’s first woman president by a landslide Sunday, making history in a country plagued by rampant criminal and gender-based violence. Flag-waving supporters sang and danced to mariachi music in celebration of the ruling party candidate’s victory, in a nation where around ten women or girls are murdered every day. “I want to thank millions of Mexican women and men who decided to vote for us on this historic day,” Sheinbaum told the cheering crowd. The 61-year-old former Mexico City mayor thanked her main opposition rival Xochitl Galvez, who conceded defeat. Shei…