Or the ancient world. Did you know that before the advent, and continuous pressure of the Christian faith, that:
a) Infanticide was legal? (Outlawed by edict of Christian Emporer Valentinian I in 374 AD)
b) Abandoning children to die of exposure was legal? (Outlawed in same edict)?
c) Killing of older children (honor killings) was legal? (outlawed in 325 AD)
d) Slaughtering human beings for sport in the gladiatorial arenas was legal? (Outlawed by edict in 376 in the east and 404 AD in the west)
e) Nuclear marriage was a joke? (a man could cheat on his wife with anyone, male or female, without punishment).
f) Pedophilia was an accepted fact of life?
And on and on and on. The most infuriating thing about you people is that you state that you don't need God for your ethical system, and then you go on to state that your ethical system comprises exactly the things that were completely alien to the world before the advent of the Christian faith, things for which thousands of true-believing martyrs went to their deaths.
Before Christ and his church, human life was cheap, might makes right prevailed, charity was not something you did for goodness' sake, but to get ahead etc.
In other words, you're cultural Christians and you don't even know it. Most of you would blanch at the idea of drowning an infant with Down's syndrome, but that happens in the non-Christian world all the time.
The next time you guys decide to trash the Faith, remember--most of your belief system as to what is right and what is wrong was formed by it.