From an outsider's perspective (I'm neither Christian nor Jewish), it's obvious to me that there are elements in both religions that are offensive to people who are not of those religions.

The idea, for instance, that Jews call themselves THE Holy People, simply by virtue of their being Jewish (and exclusively so, from what I can gather) is pretty offensive on the face of it. There are aspects of the Christian religion that I have found offensive as well. I wonder if the Jews who are saying they want Christians to change one of the most fundamental aspects of their religion would be willing to change their understanding of themselves as The Holy People if people who were not Jewish said they found it offensive.