BOGOTA — Juan Viana recalls having a happy childhood in a Christian community in Bogotá but when he came out as gay at age 18, that all changed. “Unfortunately, that community of support became a place of deep repudiation of who I really was,” said Viana, now 48. His family took him to a center for ‘conversion therapy’ — aimed at changing a person’s sexual orientation or gender identity — on the advice of a psychologist. “I was told that homosexuality was a disease, that it was caused by a