Desertion from Fighting Desertification
There was no Creation, because there was no beginning. Everything has always existed, taking different forms after interactions with everything else.
You're right that Postmodern alternatives to religion are worse than Christianity has ever been, causing nothing but weakness while Christianity at least provides some secularly useful strength. Compare the New Age's generation-destroying grooming with the benefit from prayer in schools. But only lost adults need a superstition to explain things and an absolute authority (such as our worthless elitist Constitution) to tell us how to behave.
Ancient Rome had reached the depths of decadence and depravity, which drove people into false alternatives. Christianity was merely escapism from that; converts neglected their duty to return to the ways that built the greatness of Rome in the first place. The Postmodern Era will only sink civilization lower if the historical failure of religion is tried again as a solution.