Moshe Koppel is an author with a mission. In Judaism Straight Up, he attempts to alleviate the discomfort of religious Jews who are simultaneously engaged in their religious and cosmopolitan, secular cultures. For Koppel, the problem runs much deeper than the need to maintain this delicate balance. Rather, Koppel seeks to demonstrate the superiority of Jewish tradition from a moral perspective in order to challenge the basic, and what he sees as inherently dangerous, denigration of traditional values by the dominant Western narrative.
On a general level, Koppel argues that because contemporary Western society has become infiltrated with an overwhelming progressive bias, it is no match for traditional Judaism. More specifically, he rests much of his argument on the assertion that for communities to flourish, they must appreciate equally the following three moral foundations: fairness, loyalty and restraint. Such is the case with traditional Jewish communities, in contrast to progressive, cosmopolitan Western societies that are exclusively devoted to fairness at the expense of loyalty and restraint.