I would say that the people on the Bachelor, the parents of Snookie, Kanye, The Kardashians, etc… are products of all the things we’ve been fed over the decades. Can you really admit that we’re ‘evolving’ into a better society because of all of these things?
Yes, I'm sure that Cain slew Abel because of societal degeneration.
Look at some of King David's greatest hits - that little triangle with Uriah and Bathsheba. And he was one of God's chosen.
I know you've read the Bible, and my understanding is that you believe what it says. So help me understand why you think any of this moral decline is new?