Judeo-Christian

If you really don't know what this term refers to, I can recommend the article on Wikipedia: Judeo-Christian.

If you already have a sense of what this term means, you may also be aware of the drift in public discourse toward substitution of the term Abrahamic for Judeo-Christian.

Let's face it, the lowest common denominator between the various branches of Judaism and those of Christianity is admittedly thin (and much more so in recent years than in prior decades). For example, you won't find most of the Ten Commandments in that intersection (which helps to explain the aversion of federal and many state courts for monuments to the Ten Commandments). Nevertheless, the effort to combine this with Islam in a "lowest common denominator" scheme is bound to be far more difficult. I say this because of the strains of Islam that regard women as chattel, and because of the far more aggressive evangelical traditions found in Islamism. The practice of burning people alive was last found in Christianity, as such, at the end of the Middle Ages, or the dawn of the Renaissance. (See Death by burning in Wikipedia.) Similar (though by no means identical) remarks apply to decapitation and sexual slavery. All of this contrasts sharply with practices frequently found in contemporary Islamist sects. I leave it to the reader as an exercise to determine whether more "tolerant" and "progressive" Islamic sects regard Sharia the same way progressive Christian and Jewish sects regard the Ten Commandments.

All of these abhorrent practices are abhorred by today's Progressives, at least officially. Thus, the irony of the Progressive defense of Islam and Sharia, a defense that fails utterly to acknowledge the historical and theological roots of contemporary Islamist sects in mainstream Islam, is quite striking.