Would you consider those people religious, casually religious, or not at all religious?
But that's all outward religious practice; my comment was more getting at my suspicion that many human behaviors are effectively religion in disguise. Where do axioms come from?
From those who sought to control through the theft of individual power and by consolidating that power to a ruling class.
Atheists know what they are doing. Even, nay especially, the young. They actively reject superstition. The totally reject the white supremacist style of American evangelical churches as utterly disconnected from Christ-like behaviors.
So why claim they are unaware of what atheism means? That is meant to comfort the bulk of evangelicals who rely on preachers for their worldview.