"This is not strictly correct, everything did not begin at the big bang, the theory is that there was already a point mass that exploded at the big bang."
Why can't that point mass be God, maybe just a little bigger? lol. It's really faith no matter which side you're on. I'm assuming that point mass is eternal, and what exactly is it...man seen has it with his eyes, no?
"Why doesn't god just come out and proclaim his existence? Why do we need a case for it"?
What about if he already has and you're looking at the data from the wrong angle? I'm not saying you in paticular, but there are those, even if a divine being came down in "chariots of fire", they would say "how do we know this is not just a "Copperfield" magic trick..."? Or"how do we know this is God but just another creature from another world or how do we prove he created everything?"
As the saying goes "an atheist can't find God for the same reason a criminal can't find a cop". I was not inclined to find God-since I spent so much time refuting him-for 18 years and guess what...I didn't.