Dennis Prager has written a great deal on Judeo-Christian values, which he considers one of the underpinnings of American civilization. Many people have an almost reflexive aversion to the term “Judeo-Christian” and will leap to oppose the term. Judaism and Christianity are different religions, they will point out, which means there can be no such thing as Judeo-Christian anything.
Dennis Prager wrote a set of 22 essays on the subject, including what values he identifies as particularly Judeo-Christian. There’s one website I’ve found that has the essays conveniently in one place.
One thing I think doesn’t get enough attention is the meta-law in Judaism. The Torah could have been interpreted in ways to make Judaism just as oppressive as Jihadist Islam. Instead, the rabbis have a history of interpreting laws so that the harshest penalties are literally impossible to invoke. One example is the ongoing arguments between Hillel and Shammai, and how much more restrictive Judaism would have been had Shammai carried the day.
One could make the case for this as an underlying current that drives the course of religious doctrine and practice. Because it’s not written down anywhere, it can be ignored. Individuals and institutions can swim against the current, at least for a while, but the current eventually overcomes all.