I think it is wonderful for communities of people to believe in a God or gods and bond with each other over a shared set of virtues. I also think it is great that there is a God or gods that serves as motivation and a beacon of hope for people even in their darkest times. As long as they believe, they can get through their difficult circumstances and achieve what they hope for. So I think in that way, God does indeed exist. He is an invaluable part of many people's lives