There is no such thing as a successful atheist country.
Like it or not, humanity appears to require religion to thrive.
Faith begets faith in humanity and on a smaller scale, community. The community must be homogenous for members to find contribution fulfilling instead of depriving (surrendering resources to a geographically present, invading outgroup). “Diverse” communities corrupt and become parasitic whatever the excessive funding or weak leadership (see: The Third World for the results of decades of patience and tolerance). Anyone with computer access can research this.
Apply Kant: If everyone has a privilege, no one does.
Apply Ancient Greece: It comes down to an old philosophical question, is it better to be born (value life in principle) or is life a chaotic valueless entity (nbd).
Apply Popper: In the end, we’re all privileged to be alive, viewed from our own perspective. Beyond is unfalsifiable and alters the question to Knowledge Theory.
Apply Aurelius: It shan’t last. You shall die.
Apply Camus: Nothing else beats it. Life is a gift blah blah inspirational rallying cry over a much-needed morning coffee.