History teaches us that in the absence of religion you get politics.
It's just a different way of creating your heaven on Earth, Communism was (is) compulsory in China and Russia and it's satellites, National Socialism was compulsory in Germany, Fascism was compulsory in Italy.
Humanism appears to me to be an abject failure as a concept, atheists constantly say there is no ideology to atheism that's why Mao, Lenin, Stalin, Pol Pot and Hitler are nothing to do with them. But humanism is to be taught in R.E in schools, it seems to me (in my humble opinion) that humanism found it's genesis in 1918 only to have it's apocolypse in 1939. It reinvented itself in the 1960s and the country's gone to rat sh1t ever since!
The world would be a very dull grey place without religion, think about it no Christmas, no Easter, no Hanukah, no time and a quarter on Sunday, no Diwali, no Ramadan, no Gospel music, no Dervishes (Kitchener would be pleased!), no Mardi Gras, no Dragon Boat races, no solstice, I could go on and on about the wonders and joys of the free expression of diverse belief.
But po faced atheists would disapprove, as it does'nt comply with their definition of free will...