A nation of any continent is made up of two races, the race of the first Adam in it's Fallen state and the race of the second Adam which is the new creation therefore what part of a Nation turns its back on God? Those of the first Adam are atheists, pagans, sinners, heathens, those who are not born again. It's the responsibility of the church of the new creation of those who are in Christ the second Adam to reach out to those of the first Adam called the Great Commission, if anyone has turned their back on God it's not the atheist because they don't know God therefore it would have to be the church. The condition of the church in a nation determines the condition of that Nation.