I have to admit, you pushed some buttons with this post, but I find that we end up mostly on common ground when it comes to how to handle the issue with our kids.  I'd like to offer a few thoughts, with the caveat that I'm still thinking this all through and they're probably not complete thoughts.  They're worth considering though.

First: there is an assumption in the "two types of women" comment that there are only those two types.  I disagree.  It is possible to wait for marriage to have sex and not be unhappy.  

That does take a great deal of discipline, which leads me to thought number two: we seem to have lost the desire (ability?) in this world to ask discipline of ourselves or our children.  When you're in a situation that requires you to call on your self-discipline in order to resist temptation, is that easy?  No, not usually.  But it doesn't mean that you shouldn't be disciplined, nor does it mean that living a disciplined existence is miserable.  The rewards of disciplined choices are usually not immediate, we cannot always see what we've gained, but the standards are still worth pursuing.  

Third: I see a difference between someone who is religious and someone who is faithful.  Religious-to me, anyway-usually refers to outward behavior that relies on ritual and tradition.  Faithful-again, my definition-means someone who makes choices in a genuine effort to please  God.  As part of my own faithful behavior I make certain choices.  I do not require those same choices of others, however I hope my children will make the same or better decisions.  

Fourth: I wonder about the whole red state/blue state thing when it comes to communication between parents and children about sex.  Doesn't age and generation have something to do with it?  I know that people even ten years younger than me are much more open about sex and so on.  I haven't read the study, but I was just wondering.