The ignorance of basic human behavior is the underlying problem with communism. They actually believe a Godless man who only worships the state can be achieved if only man is whipped and terrorized enough. The problem is people are born with an innate sense of God-granted freedom and you need to whip every generation sufficiently to destroy their will and bow to the state.
All liberals, communists, marxists, statists, tyrants and dictators ignore fundamental human nature and suffer this fatal conceit.
Another aspect of Humanism is the belief in the “superman”.
Humanists believe that the level of moral and intellectual achievement can be far superior in certain “super” people, and this goes hand in glove with an evolutionary worldview.
When communists would invade a country or society, they wouldn’t extol the benefits of communism so much as they would teach evolution. Having this basis for belief leads inexorably to atheism/nihilism, which in turn empowers the State as the only eternal entity, superior to the rights and desires of the people under that State.
A woman would never have another child just to make the check go up, or
people who don't need free cheese would never stand in a line to get free cheese, or
somebody who has a 6th grade education and a half-dozen illegitimate children would never spend food money on extensions and nails...
and on, and on, and ad infinitum ad nauseam