When's the last time you prayed to God? Did he respond?
I prayed to him for years and years and received no response. At times, I would grasp at straws and try to interpret an experience of mine as an answer to a prayer. But it was only grasping at straws. He never responded. At times, all I would ask for is a sign. There were no signs.
At some point, you have to ask yourself why the God you love doesn't make it obvious that he exists. Why wouldn't he? It would be so easy for an omnipotent God. If he plans on destroying billions of people because they have no faith, why doesn't he give them a chance to have faith? God would know that people believe in what they see. So why doesn't he appeal to the eyes?
Maybe I put too much stock in the God of the Bible. Maybe God just doesn't care. But that's unlikely. I would expect a God to care more than we do, since he would have much more power to improve conditions on planets.
If this offends some, I'm sorry. But that's just how I see it.