…on the offensive embarrassment of Mary.
Mary is right at the epicenter of the scandal of the incarnation, when God decided to not remain in the nice, safe spiritual realm of ideas and platonic forms and instead got all gynecological with the attendant body fluids, mucus and,most of all, blood that goes with that whole project. To people offended by a God who is not ashamed to be made of meat, go to the toilet, and suffer gruesome death, it has been a huge difficulty ever since.