You lose your argument immediately following the words “God exists”. All you display is the lack of YOUR imagination or compassion to UNDERSTAND God’s existence. Many who know God do not fear death at all. Einstein said experience is from the relative point of view of the observer. In his mental exercise, an atheist explaining why man needs God is like his observer of the train standing at the airport instead of the train station. Why would he believe in trains? Planes certainly make pulling boxcars on rails unnecessary. Explain the only reasons YOU have to believe in God, but don’t have the temerity to think you know why I and others believe.