God created people who knew good and came to know evil. Some chose evil, because evil was the way to wealth and power--positions of authority.
It all goes back to what Milgram taught society long ago. People bow to authority. If authority says it is okay to cause someone pain, they will cause that pain. If authority says it is okay to vacuum the future generation from the womb, people will line up to do just that. When population falls, and authority tells the people to open the borders to all because there is no long a sustaining population of servitude for the rich and powerful, people will turn a blind eye to open the borders.
When authority tells people to mutilate their children, mutilation will happen. When authority tells people sexual freedom of all kinds is permissible, people will fall into line to indulge this freedom--even though a book dating back to the early days of mankind warns again and again, the lack of sexual discipline results in the fall of great empires.
The true question is, Why do people blindly favor and follow human authority of debauchery instead of opening their eyes to follow the ideal authority of God's? Simple. The road of debauchery is wide and downhill, so easy. The road of God (love and goodness) is narrow and uphill. The question: Why are we a lazy people when our potential carries so much strength?