The problem with some atheists is that they seem to think not believing in gods makes them scientifically literate when apparently it really doesn't. Even if we concluded that believing in god is objectively irrational that is only one small characteristic, everyone has delusions and we are all prone to it.
Whoever fights monsters should see to it that in the process he does not become a monster. And if you gaze long enough into an abyss, the abyss will gaze back into you