I did post an article for you to read how this quote was taken out of context just as my quote (that I admitted was out of context) can be abused to say that "There was no God". And did you not see that there are at least twelve such examples in the Bible? I never link to this claim of the Bible because it is both foolish and incorrect as far as modern atheism goes.
That is an example of a defensive verse. Where one attacks those that find flaws in the Bible. Please note that it says "in one's heart". That implies an emotional response and very few atheists are atheists for emotional reasons. There are Christians and other theists that sometimes have a "crisis of faith" because something bad happened to them and they become atheists out of anger. In that case the verse is actually right. Reasoning with your heart will not give a reliable answer. Those are the sort of "atheists" that tend to go back to theism once they forgive their god. Most modern atheists are atheists because they realize that there is no reliable evidence for a god.
I believe that people are atheists because it gives them the belief that they have nobody to answer to and they can make up their standards on morality. Evolution doesn't have a leg to stand on. Yes, eyes dont fossilize, but there would still be evidence of the intermediates of eyes. While nobody said that the smallest cells can develop in nature within less than billions of years, making a modern cell would speed up the process, therefore, the fact that people haven't made cells shows that there is doubt about evolution being a fact.