I agree whole heartedly with Lewis, and I think had he lived another decade he would have observed a counterculture that also recognizes the same rules and standards, but finds it fashionable to flaunt and defy them.
I posted a quote in my blog post (linked at the top) some input from a skeptical philosopher, he ends the small section from his book like this:
“[....] Moral statements, then, cannot be mere matters of taste and opinion. They essentially involve an appeal to principles that transcend both the wishes of any one individual, and the customs of any one culture or society. That there are such principles, and that we cannot really escape from them, are points Lewis successfully illuminates. It thus seems very plausible to suppose that when our moral statements appeal to these principles in an appropriate and rational manner, they deserve to be called truths.”
Lewis was interviewed some time in the early sixties, and said, "I look forward to the next ten years with the greatest trepidation."
God was merciful, and prevented him from having to go through it, taking him out of the mess on November 22, 1963, just before the madness really geared up.