Hmm, how many of those unbelievers are “living well” enough without God?
The North Koreans perhaps? Maybe the holdover Russian and Chinese communists?
Look at history’s most prolific atheist leaders. Lenin, Stalin et al, Mao. They had a great opportunity to demonstrate how well Godless people can live and what it takes to lead them.
Is there a majority atheist nation or people governed by an officiallly atheist government that is “living well”?
Imposing your beliefs on a population through fear and force is despicable whether it is atheism, Islam, or Christianity.
There have been thousands of Christian rulers who, throughout history, have sought to impose their brand of religion on the population against their will. The history of my country, England is replete with examples, including Queen Mary (Catholic) and Queen Elizabeth I (Protestant). When you look at the archives from Elizabethan England, in many ways it was little more that a police state where neighbors were encouraged to inform on each other if they suspected that subversive Catholic activities were going on.
Atheism, by itself does not lead to tyranny any more that Christianity does. Many countries in Europe are majority non-believers, or close to it, and since the Wall came down, none has shown any desire or propensity to impose a dictatorial atheistic regime. If anything, Christianity starting to is flourish again in Eastern European countries even where the atheistic leaders are still in the majority.
Blaming the evils of Communism on non-belief is an easy scare tactic to employ to frighten poor believers away from questioning their beliefs, but the truth is that history has shown that despicable men will use whatever tools they need, religion included, as a means to impose despotic rule over their fellow countrymen.