Non religious literature does the same though
How many books survive for 2000 years? How many books which were originally written in ancient Rome, Greece or China, are still being read today because they help us in our everyday lives?
A friend asked me once how I, as a modern, intelligent person, could believe a bunch of fairy stories, and my response was that even if you strip away the magic of the virgin, birth, the miracles, and the resurrection, Jesus' teachings of love and respect for one another, for other nations and peoples, are what I follow and believe in. The miracles and magic is window dressing to the central message of love, obedience and respect.
Mocking people who believe in God is a pointless waste of your time. It won't change our beliefs and more than we will change yours.
As for those who say that God opposes abortion, I say that if God didn't believe that abortion was sometimes necessary, women wouldn't have miscarriages.