So what's the real deal?

Have you ever had silly questions come to your mind? They don't really mean anything because they either have answers which are too improbable or there is no reason to even have an answer to them on the first place. Questions like- Why do I exist? What would the end of universe look like? How would I see myself if I were someone else? So what's the deal with them anyhow? Too many questions, yet not many answers unless you start adding God after every word in your reply. Then you ask yourselves the ultimate question, something that would solve almost every cause of war, terrorism, fanaticism- Does God exist? Now why doesn't the human population devote all its time to find out if God really exists after all, because that is one big reason which seems to be driving people crazy. I actually find it insane. People should find it insane as well. If you think its normal to be discussing about a thing you made up on the first place, you are probably a fanatic. Maybe you like Hitler, maybe you are a Nazi. Who cares? Well you do, and with almost a hundred percent probability you believe in what you wish to believe. Why then do we have to be afraid of terrorists? If we are so sure of our beliefs why do we have to be so disrespectful to others' beliefs, however radical? After all, when man made God, He had no idea who had made man.