A god is what ancient peoples used to explain why the world was the way it was, and to explain natural events like natural disasters. Unfortunately some of those people learned that if they spoke for this god they could have incredible power over their fellow man. Don't want people to have random, indiscriminate sex? Tell them that STD's are your god's divine punishment for enjoying their naughty bits. As time goes on, continue to make god in your image.
Christian apologetics is the art of rolling a dog turd in sugar and selling it as a donut.