Then I considered all that my hands had done and the toil I had expended in doing it, and behold, all was vanity and a striving after wind, and there was nothing to be gained under the sun.
Try as we might, a life without God makes zero sense. Throughout history, all those who tried to make life make sense on their own terms did not succeed, and most in high positions caused great harm. Talk about Hitler, Stalin (whose last gesture before his death was giving God the finger), Pol Pot, and other despotic atheists. One thing we all have in common in life is that noone asked to be born. We just found ourselves on earth. It is therefore ridiculous to try to create one’s own set of rules contrary to that of the Maker of heaven and earth.