It has been said by theists that “One cannot prove that god does not exist any more than one can prove he does”. But atheists don’t need to prove god does not exist. There is no evidence of any such thing. Most likely in our ancient past, before any scientific research was ever done, people made up some stories to explain why things happen in the world and why people die and what happens when they do. They would also have tried to make up some stories to explain why we feel a sense of moral right and wrong and why people shouldn’t kill and shouldn’t hurt others. Those stories have become what we call ‘religion’. They have become part of our culture and have been handed down to us over the centuries.
Why should we have to try and prove if those stories are about something or someone who is ‘real’ or not? They are not based on any evidence at all. Do we need to go out and try and prove if Cinderella exists or not? Or Jack and the giant from Jack and the Beanstalk? We all consider such fairy tales, that have also been handed down over the generations, to be good yarns that also teach our children something about right and wrong. No one seriously considers we need to prove that the characters in them do NOT exist. So why should atheists be expected to have to prove if god does or does not exist? We consider the stories of god just that, stories, no more. If someone out there seriously believes Cinderella does exist, it is up to them to prove it. And they cannot prove it by simply quoting the Cinderella story.