Every single day mrs lj and I discuss these and related matters and can only conclude that the world has gone mad. When a culture - or a certain percentage of people in that culture - reject God, and His basic rules for human behavior - destruction is the only result.
Not just sexual morality rules, but even the basics such as "do unto others as you would have them do unto you". So many people now think that telling the truth, being respectful to others, respectful to the eldery, modesty in dress and behavior, kind towards the young, merciful to the helpless, faithful to the spouse, honesty in dealings - are just quaint historical habits of the past.
Hmm - after re-reading my post above, lots of strange grammatical errors... but the point is there.
For a society to function properly, those "quaint historical habits" are necessary....just as those "quaint historical" grammar rules (proper punctuation and spelling) is necessary for writing well, lol! Without rules, it's a "free for all," ain't it? : )