My objection to this sort of behavior isn't religious. It's that I value the preservation of civilization, and I have a real problem with a bunch of self-absorbed thugs who are trying to fuck it all up. It took thousands of years to get to a society even approaching one where men and women could relate on loving and mutually respectful terms, and the casual sexers want to throw all this progress away within one generation.
Dude.
They were saying that in the 60s -- 40 years ago when I was three.
And they were saying it in the roaring twenties when my grandma was twelve.
Hell they were saying it in the 1880s. The Victorians were convinced that the end of arranged marriages and free courting meant chaos and destruction was upon us all.
Just when is this easy-sex-kills-civilization event supposed to happen? I'm only planning on living another couple hundred years or so.
So, yes, civilization as conceived by each of those groups clearly did die, just as they predicted. Whether the current incarnation of civilization is a net improvement, of course, is open for debate.
Give it up already, you and your stupid beliefs have been utterly trounced.