As you all one cannot prove a negative so the possibility that God exists is real. There could be an intelligence that is responsible for everything that is and that happens
Life for living things is cruel. That is undeniable. Is nothing responsible for it?
If there is a supreme being or intelligence responsible that intelligence or being has to be evil logically speaking. Perhaps this thing so many people believe in and bet to is real in some sense? Maybe it is not the main "god" but perhaps it is little bitch like the character Q from Star Trek only much more cruel and totally depraved. Certainly, the God of the Bible and Koran is a filthy no good son of a bitch and the Bible and the Koran prove it. This being has tormented corporeal life since it began.
Real or fictional, God does no good and a great deal of harm. Very few believers will be swayed into believing that there is nothing but while most of them will deny the reality of their god and the inhumanity and torment humankind endures perhaps some of them will screw up their courage and turn against this sadistic entity? That would be better than having them believe in BS like prayer and faith aka believing something you know is a lie.
Mark Twain gave this a lot of thought.
Mark Twain's Diatribe
“...a God who could make good children as easily as bad, yet preferred to make bad ones;
who could have made every one of them happy, yet never made a single happy one;
who made them prize their bitter life, yet stingily cut it short;
who gave his angels eternal happiness unearned, yet required his other children to earn it;
who gave his angels painless lives, yet cursed his other children with biting miseries and maladies of mind and body;
who mouths justice, and invented hell--mouths mercy, and invented hell--mouths Golden Rules and forgiveness multiplied by seventy times seven, and invented hell;
who mouths morals to other people, and has none himself;
who frowns upon crimes, yet commits them all; who created man without invitation, then tries to shuffle the responsibility for man's acts upon man, instead of honorably placing it where it belongs, upon himself;
and finally, with altogether divine obtuseness, invites his poor abused slave to worship him!” --Mark Twain--