Militant anti-theists of the 21st century have little good to say about religion, often blaming it for most of the world's ills.
Few, however, seem self-reflective enough to examine the results of militant atheism's impact on society in the 20th century. A case in point is Russia.
With the conversion of St. Vladimir, prince of Kiev, in A.D. 988, Christianity became a central part of Russian national identity. (Vladimir is reported to have chosen to convert to Christianity rather than Islam because Islam forbids drinking wine.
"Drinking is the joy of all Russians," exclaimed Vladimir in dismay. "We cannot exist without that pleasure.")
Thereafter, Christianity spread throughout Russia. In fact, after the fall of Constantinople to the Turks in 1453, Russia emerged as the heartland of Eastern Orthodox Christianity, which became central to Russian culture, in art, architecture, music and literature.
All of this dramatically changed with the Russian Revolution in 1917. The original broadly based revolution was swiftly co-opted by Lenin and the Marxists, who promised liberation not only from the feudal tyranny of the czars but from the spiritual bondage of Christianity.
Being officially and militantly atheistic, the Leninist regime set about completely undoing the old religious order of Russia. And there was a good deal of justification for anger against the Russian Orthodox Church, which had become corrupt and was a major bastion of support for the autocratic rule of the czars.
Of course, the promised peoples' paradise didn't develop. Quite the contrary. The tyranny of the czars was replaced by the even worse tyranny of Lenin and Stalin.
Beginning in 1917, Leninists and Stalinists set about systematically seizing all church property and destroying church buildings. Militantly atheistic Stalinist totalitarianism would tolerate no competitors to the state for the hearts and minds of the people.
The Russian Orthodox Church was, thus, not merely to be reformed but had to be destroyed. And Stalin's commissars were nothing if not efficient in their suppression of all forms of dissent.
In 1931, the Stalinists obliterated the magnificent Cathedral of Christ the Savior in Moscow, in a barbarous act of wanton destruction.
By 1940 nearly 30,000 churches had been closed, confiscated or destroyed; only 500 remained active in all of the Soviet Union.
Of course this cultural vandalism was nothing compared to the shocking human tragedy as Christians were systematically persecuted, imprisoned and massacred. Russian metropolitans (essentially archbishops) and bishops were regularly murdered and tortured.
One was crucified upside down on the iconostasis of his church. And the lower clergy didn't escape. They were hunted down, tortured, mutilated, buried alive, shot or fed to animals. More than 100,000 priests, monks and nuns were killed; many others were imprisoned in gulags.
Religiously active lay Christians fared little better. Many Christians were sent to psychiatric institutions, since the Soviets considered religious belief a form of mental illness. Others fled into exile. (A sense of the intense evil of these persecutions can be found in the writings of Aleksandr Solzhenitsyn.) The scale of this holocaust against Christians in the Soviet Union compares in some ways to the holocaust against Jews in Nazi Germany.
And this assault was not merely against Christianity. The Soviets attacked the very idea of God, in any form.
Every religious denomination was ruthlessly and bloodily suppressed by the Stalinist commissars, including Judaism, Islam in Central Asia, and Buddhism in Mongolia.
Even more remarkable than the vast scale of devastation, imprisonment, torture and murder of Christians by the Soviets is the fact that these efforts failed.