oomis, VERY well-said. There is no such thing as true morality. For us Jews, eating pork and marrying gays is as immoral as murder. Obviously there is a concept of mitzvos kalos and chamuros, but there is no external form of “morality” playing any role.
Lawrence Kellerman uses the human race’s general condemnation of murder as one of his four approaches to proving there is a god, in his book Permission to Believe.