fOTTAWA -- A Catholic priest was called a Judas and urged to defrock yesterday after he wrote a scathing open letter that condemned the Vatican's campaign against the legalization of same-sex marriage. Rev. Raymond Gravel said he received a lot of public support for his controversial views, but that he faced heat from a minority of churchgoers. He said he now expects a reprimand from his superior for breaking with the church's official position, enunciated last week. In a letter published in Montreal's La Presse, Father Gravel said the Vatican's position against same-sex marriage is "discriminatory, hurtful and offensive ....