<< No, I can't disprove God's existence. So what?>>
You have not even marshalled any evidence which suggests that it is more
reasonable to disbelieve in God than not. All you have done is sit back and
try to poke holes (quite ineffectively) in the case for Christianity. This
makes you more of a surly agnostic than an atheist.
If you want to be a true atheist, then tell us why it is more reasonable to
accept the non-existence of God than His existence.
<< I have made a positive case FOR MY MORAL SYSTEM.>>
That's a different story. Yes, you have laid out a case for YOUR moral system,
and that's fine. It just doesn't apply to anyone else.
<<You really need to do some more reading, Jim.>>
Why don't you recommend some books? I've posted extensive quotes and
citations. I can't recall your ever doing it once. I certainly would like to
know what you're reading. What thinkers have influenced you most?