And why do Christians then assume that it must be the Christian God?????
What happens if the gods are real and they are called Zeus, Hera, Pallas Athene, Apollo, Hermes, Artemis, Hades etc?
There is actually no way that the Jewish myths can be proved to be any more correct than their Greek (or Norse or Aztec or Inca or Fijian or Babylonian or Sumerian etc.) counterparts. None whatsover!
And if you think that the Big Bang theory is flawed, how about a religion based upon talking snakes? Women being turned into pillars of salt? 800-year-old boat builders with animals such as kangaroos (which hadn't been even heard of at that point) being taken on to the Ark.
And then there is the interesting situation where exactly two humans were originally created. They have children? Fine. They have grandchildren? Then who did their children have children with? Son(s) with their mother, or sister(s)? Father with daughter(s)? And the incestuous relations would have been obliged to continue. And the species would have been so genetically flawed it would never have survived.
More sensible than the Big Bang theory (and have you read Stephen Hawking's works in full - there is a lot to the thinking to be absorbed?)????
So meanwhile you and I have both got it wrong, the ancient Greeks had it right, and we are all heading for Tartarus. Make sure that someone put a coin in the mouth of you corpse to pay the boatman (Charon) on your journey across the River Styx!
It's not going to happen? Well there is no logic that says that we are more likely to end up in Hell than we are to end up in Tartarus. On a scale of ludicrousness the concept of ending in Hell or ending up in Tartarus are completely equal.