Secular Humanism has failed

 It has failed because it did not appreciate the inherently religious nature, nor the tragically fallen nature of Man; it did not have proper constraints and incentives for the human soul to flourish.

A society without God is a society in which we - following the primal pattern of the Fall in Genesis 3 - attempt to insert our self and our desires into the place of God.  And it simply doesn't work.

We in America and Europe now have a society in which people are giving up on marriage at alarming rates; where so few people are having children that the total human population is set to start declining for the first time EVER, where exceedingly few young adults say (when surveyed) that they would fight for their countries; in which loneliness has become epidemic; where there is confusion about such elementary realities as being created "male and female"; in which fraud and corruption in large institutions (and governments) are so commonplace as to be almost expected; in which there is little-to-no will to maintain the borders of Europe against large migrations of Middle Eastern and North African Muslims who (quite openly) aim at the Islamification of Europe; and on and on it goes.

There has been no "Star Trek"-like utopia since our societies began to secularize: only a crumbling of the foundations of everything.  

That's my take.  Here is that of author and philosopher Os Guinness: