New Atheists are quick to point out that they reject the violence of Stalin’s Russia, Pol Pot’s killing fields, Mao’s China, Castro’s Cuba and Kim Jim Il’s North Korea. But the problem is their rejection is wholly arbitrary for that have no objective means for opposing it. Leading atheist journalist and historian S.T. Joshi admits in his book “The Unbelievers: The Evolution of Modern Atheist”, that if you are an atheist , “…it is the brutal truth that…(a) system of morals is merely a bundle of preferences…” Joshi, like the late J.L. Mackie, Albert Camus and John Paul Sartre have the guts to admit the logical consequence of atheism is a lack of any objective moral laws and duties.
What Hitler did not believe and what Stalin did not believe and what Mao did not believe and what the SS did not believe and what the Gestapo did not believe and what the NKVD did not believe and what the commissars, functionaries, swaggering executioners, Nazi doctors, Communist Party theoreticians, intellectuals, Brown Shirts, Black Shirts, gauleiters, and a thousand party hacks did not believe was that God was watching what they were doing. And as far as we can tell, very few of those carrying out the horrors of the twentieth century worried overmuch that God was watching what they were doing either. That is, after all, the meaning of a secular society.
― David Berlinski The Devil’s Delusion: Atheism and Its Scientific Pretensions