But *which* universal standard? Suppose I'm looking at two books, both of which are claimed to be the Word of God. One says "love your neighbors", the other says "kill the infidels". Do I just flip a coin?
That is a secondary issue as far as the current topic is concerned. I am dealing with the inherent amorality of atheism and am not making a case for any particular system of theism... though I'm convinced that Christianity is the true one. A good website that has a ton of material to deal with this is here.