It's only a matter of time. I have been saying for years--once you abandon a basis in an absolute authority, ultimately anything goes.
And it's all happened before:
“In those days there was no king in Israel; everyone did what was right in his own eyes.” (Judges 21:25)
Many of the leaders in this nation from the President down are opening the door for moral relativism to pervade this culture.
Newsmax headline (27 Jun 2013): Polygamists cheered the Supreme Court rulings on gay marriage Wednesday as one step closer to getting their multi-person relationships legally and socially accepted. Read here: http://www.newsmax.com/TheWire/polygamists-gay-marriage-ruling/2013/06/27/id/512233