Much consensual adult behavior that Judeo-Christian values would prohibit is unholy rather than immoral. For example, non-marital sex between consenting adults violates the Judeo-Christian code of holiness, but not necessarily its code of morality (if there were coercion or trickery, it would, of course, be immoral). The only holy sex in Judeo-Christian religions is between a husband and wife. All other sex is unholy. But not necessarily immoral.
All immoral actions -- such as stealing and murder -- are, of course, unholy. But not all unholy actions (like eating with one's face in a bowl) are immoral.
Nevertheless, just because holy and moral are not identical does not mean the holy is not monumentally significant. Elevating human behavior above the animal and toward the divine is one of the greatest achievements humans can accomplish. If we really did behave like animals in the sexual arena (like the famous bunny rabbit, for example), society would eventually collapse.
Speech is another example. In our increasingly secular world, fewer and fewer attempts are made by people to elevate their speech. That is why public cursing is now much more prevalent. In most ballparks and stadiums, one hears language shouted out that would have been unimaginable a generation ago. Sanctifying speech is another religious value; it is not a secular value. Whenever I see a vehicle with an obscene bumper sticker, I am sure of only one thing: The owner of that vehicle does not regularly attend religious services.
The consequences of the death of the holy are ubiquitous. Secular Europe is far readier to feature nudity on public television than is Judeo-Christian America, and it is far more accepting of people walking around nude in public at beaches. The Judeo-Christian problem with public nudity among consenting adults at a beach or even at a nudist colony is not that these people are necessarily acting immorally (they may not be touching one another or even sexually arousing each other); it is that they are acting like animals. Clothing gives human beings dignity; it elevates them above the animals whose genitals are always uncovered (the first thing God made for man and woman is clothing).
And that is what the Judeo-Christian value system ultimately yearns for -- the elevation of human conduct to the God-like, rather than allowing us to behave like fellow animals.