Within 24 hours of arriving in San Miguel de Allende, Karen decided to permanently leave the United States and become one of the many recent US immigrants to Mexico. Four months before visiting the city, the 55-year-old had been terminated as part of the Trump administration’s January 20 executive order suspending the US Refugee Admissions Program. Karen, who asked me not to use her full name because of her current immigration status, says through a haze of tears, “It’s hard to explain the compound grief involved in seeing a sector that did nothing but good just destroyed,” adding that much...