THE Vatican opposes the criminalisation of homosexuality as practiced by a number of countries with the support of Catholic groups, the head of the Vatican's doctrine office said. Presenting a publication which reaffirmed the Vatican's opposition to sex changes, gender theory and surrogate parenthood, Cardinal Victor Manuel Fernandez called laws punishing homosexuality "a big problem" and said: "of course we are not in favour of criminalisation." Fernandez, a liberal theologian whom Pope Francis appointed as head of the Vatican's Dicastery for the Doctrine of the Faith less than a year ago, told reporters it was "painful" to see some Catholics support anti-homosexuality…