Oh, it's more than that.
The Theory of Evolution as the origin of species through purely naturalistic means is explicitly one of the key tools in the atheists long-running culture war against Christians in the West.
Up until the 1800's, not only was the clergy the generally most trusted source of wisdom in western culture, academia was also tightly intermeshed with it. Partly because contrary to modern atheists' fables, the church historically guarded what knowledge there was about the natural world, with at least as good a record about it as atheists have had since, and partly because a lot of universities were founded in part or whole as schools for training clergy.
In the latter half of the 1800's though, a serious movement got going, I honestly don't know when or how it started, that rejected the existence of God, and started fighting for secularization of practically everything. Perhaps at first it was an extension of the cultural backlash against sectarian wars between Protestants and Catholics, part of trying to keep specific denominations from abusing cultural authority.
Even if it was in part originated from that, by the early 1900's, it was already aggressively trying to seize cultural authority, and oust Christians and Christianity from places of influence. Across the mid-20th century, it succeeded in this, one of the key milestones being evolution getting pushed into classrooms after the Scopes Monkey Trials.
And contrary to what the atheists will claim, everywhere they have gained primacy, things have gotten worse. The Eugenics movement, every major Socialist movement of the 20th century, Post-modernism and its founders attempts to normalize pedophilia, the general dehumanization of man, period.
Atheism is the cultural corrosion at the root of so many evils of the modern era, for one simple reason. It removes the moral arbiter from the picture, and therefore moral law becomes a matter of opinion. As Nietsche himself predicted, after the cultural elite 'killed god,' the 20th century became the bloodiest in human history as a result.
People will go to literally insane lengths to try to redefine morality so that their pursuit of power and pleasure is no longer evil.
