From a remark in the comments. I thought it worthy of emphasis, so I repost it here as a guest post.
This is something I used to point out. Every belief system has to have an answer for the question “If I’m right, why doesn’t everyone else agree with me?”
For atheists this is especially pertinent, because the overwhelming majority of humanity from all other belief systems disagrees with them on the existence of the transcendent and supernatural.
There’s only one answer to this question that’s available to the atheist, namely “Because I’m more intelligent/rational/intellectually brave than everyone else.”
The problem is, this answer is completely nonsensical given the anti-teleological premises of atheism. From a Christian standpoint, God made man in His Image, and this entails man being a rational animal endowed by God with a faculty of reason, which has a natural end of ascertaining truth and distinguishing it from falsehood by perceiving and employing universal and inviolable laws of logic.
Since human reason has a real, objective, God-given function of ascertaining truth according to Christian theology, it makes sense that certain people who have been gifted with a more powerful rational faculty than the average would be especially adept at penetrating deep mysteries of reality than others, a gift that they could employ to great good or great ill, to honest seeking of the Good, the True, and the Beautiful, or to construction of elaborate sophistries to deceive and spiritually wound themselves and others.
But from an atheistic point of view, human beings are nothing more than purposeless meat robots, mere bundles of atoms cobbled together purely by accident. Our rational faculties were not made for discerning objective truth, nor for anything at all. At most one might argue that meat robots with larger amounts of squishy grey stuff inside their skulls ended up capturing prey or evading predators more successfully on average than meat robots with less of it, but it does not follow (and does not make sense) that the amount of squishy gray stuff inside a meat robot’s head somehow magically gives that meat robot greater access (or any access) to universal and inviolable abstract laws of logic, nor to truthful propositions about the origin of the cosmos or the ultimate nature of reality or really anything.
In short, atheism relies on the idea that atheists are more intelligent and rational than everyone else, but at the same time it fatally undermines any basis by which intelligence and rationality might be said to correlate with knowledge of objective truth about reality.