Not really, they usually spend five or ten minutes on skeptics and scoffers dot com and they think that makes them an expert.
Actually quite a few of the atheists I've met
actually cared enough about "faith" to study it closely.
In the US since the vast majority of people are Christian it would be
extremely difficult to grow up in a "religion-free" household. So I would hazard a guess that
many atheists started off with the "religion meme" in their heads from a very early age.
What seems to be somewhat common among atheists is that they tend to look very closely at the religion they inherited and try to figure out if it is a fit.
As such many atheists tend to be very well versed in theology.
NOW, that being said, one must remember that
just because someone doesn't get into your particular sect of Christianity doesn't mean they are completely unfamiliar with "God" or Christianity.
This is a conceit many Christians carry, especially the more "Fundamentalist".
They feel that since
they know the
real and true mind of God
unlike all the other apostate Christian sects , that anyone who doesn't
believe their particular sect's particular sub-sub-sub-rules is obviously wholly ignorant of TRUE CHRISTIANITY.
The enemy has come to steal, kill and destroy. He is the father of lies and he is able to teach lies to those that are deceived.
Think about what many atheists go through in their lives. They
fear that they have deceived themselves by believing in something they really don't "feel". So they study their faith. They are working very hard to understand their reality as they perceive it. They can do no other. No one can.
So just telling someone they are "decieved" by a supernatural evil being is probably not going to carry much weight.
"The thief comes only to steal and kill and destroy; I have come that they may have life, and have it to the full." John 10:10
This is good in so far as it goes. Christianity and in fact all religions serve a positive purpose in many people's lives. It brings comfort and it helps to moderate our extremes.
In some people. In others it is little more than a chance to dominate others by dint of their superior "relationship" to the TRUE God.
But religion and faith can bring lots of good to people. But for some people it can also bring pain and suffering of a variety of sorts.