Like Nimrod, early revolutionaries like Marx did not doubt God’s existence either. This is why Marx and similar thinking revolutionaries chose to call themselves antitheists rather than atheists. They knew that God exists but set their wills against Him and forbidding the asking of questions, required blind submission in all things. In obedience, the ‘new’ Marxist, Soviet, Darwinian, secular humanist man asks no questions and by way of destructive criticism, ridicule, scorn, etc. permits no one else to ask them either.
Whereas Nimrod’s sect served a deity of evil (Satan, Shaytan, Shemyaza, Lucifer) early antitheists did as well. From Marx to Saul Alinsky, they acknowledged Lucifer as the first free-thinker, the one who liberated man from the ‘evil’ God of creation, the god in whose genetic image they are made, the god of evolution, and so on.
Discussion of this subject causes a new term to pop into mind...
"Fabian antitheism" -- The gradual process of indoctrination in which believers are moved first to non-belief and then slowly to belief in the god of evil.