I remember hearing a Jew saying that Jews never use the term "Judeo-Christian". I have heard Christians use it, though.
Still, we do derive much of our validity from Jewish tradition. I think that the problem comes in when we consider the Jews of today to be the same thing of the Jews from back in the day.
EDIT: Forgive me, I didn't realize that there was more than one page of responses. I only read the first page.