Without proof, this is an exercise in futility and always will be. Militant, belittling atheists and enthusiastic Christians with a self proclaimed degree in theology charge each others crystals.
Christians beliefs tell them that is it there responsibility to testify to others, what excuse do atheists have for the constant militancy and belittlement without being provoked? Neither have proof, one has what they view in their mind as a responsibility that if not taken care of will result in consequences.
Many atheists believe the belief in God (or gods) is simply a symptom of poor reasoning, unquestioned social conditioning, and an inability to be emotionally/intellectually honest with oneself.
Obviously, they think (with good evidence often times) the cognitive errors that result in religion often spill over and negatively affect other parts of society as a whole. So they see their crusade against religion as a humanistic effort.
Also, atheists don't need to prove that God doesn't exist. If I told you there were fairies that deliver thoughts from the cosmos into your head (which result in good ideas), why would it be your job to disprove that? Wouldn't the burden of proof naturally fall on me? And if I offered terrible evidence, would you not be justified in rejecting my claim about Idea Fairies? Now what if word spread and millions of other people started to believe in magical Idea Fairies. Wouldn't you feel obligated - for the sake of the species survival (which depends heavily on our ability to perceive reality as accurately as possible) - to get involved and seriously question this shit?
The problem I see is this:
Everyone's always trying to sit on the fence in regards to theism/atheism. I've been doing that most of my life. It's safe that way. But I feel like eventually, for sanity's sake, you have to admit that there is either
1) A higher power (or higher powers), a spiritual realm, etc..
2) No transcendent realm or higher power.
The process you use to determine the validity and accuracy of both possibilities will greatly affect how you deal with other parts of your life.
That's all I'm saying.