I believe the nearest people generally known as primitive cavemen over the centuries have been those who've become ingnorant, pagan and depraved spiritually and morally, having departed from truth and light from their maker.
This raises the question of why those who have become pagan and depraved spiritually and morally (by your standards) in this day and age don't suddenly lose the ability to use a can opener.
I mean... crimney, Lakeview'd be like the opening scene of 2001.
"Good evening. I'm playing the role of Jesus; a man once portrayed on the big screen by Jeffery Hunter. You may remember him as the actor who was replaced by William Shatner on Star Trek. Apparently Mr. Hunter was good enough to die for our sins, but not quite up to the task of seducing green women."
-Stewie Griffin