Well, I have noticed the same thing in many unintellectual atheists, but even the many intellectual atheists I have met can eventually be reasoned into really being agnostic.
By its scientific and evidential credentials alone, atheism is a very flimsy belief that can’t stand up to much intense scrutiny. It requires one to violate one of the essential principles of mass conservation, “out of nothing, comes nothing”.
Of course, when you bring an atheist into the agnostic stage, he is ripe for spiritual enlightenment through Jesus Christ.
Yep, those pesky laws of physics. There is no creation without a Creator.
The true atheist is someone who puts his “trust,” in absolute contingency.