As an atheist, I do not deny the existence of God. Reason tells me God exists.
There is a God(s) because we have created it. It describes and expresses a need that many human beings and societies have. Bertram Russell thought it a crutch. Sometimes when i am anxious, I read my horoscope. So I can relate.
God is a metaphor, as Joseph Campbell said. To me it is an abstract noun, like good.
I do not need God (one, or with just many arms) in my striving to be a good person. Nor do I need God to define what good is. What is morality but high intelligence? asked Julian Huxley. Reason is enough - and weighted with less cultural baggage.
I do not see the conflict between God/Belief and Science/Reason.