Illusions of Objectivity

I find this quote from Robert Oerter, posted on Exploring our Matrix, to be a classic example of the misplaced belief in and reliance on objectivity:

"If religion teaches us atheists one thing, it should be this: to be skeptical of claims that we want to believe. Some atheists seem to have fallen into the trap of believing in a pagan origin for Christianity because it suits their agenda, rather than on the basis of the evidence. We should instead be careful about all claims, until they are established on the basis of actual data and methodical scholarship."

 -- Robert Oerter, "How To Become God" from the blog Somewhat Abnormal

Everyone "wants" something. Theists want God to exist. Atheists don't. One question is, in what way(s), if any, does that subjectivity wrongly influence our conclusions. Admitting presuppositions is healthier than thinking we're the only one's without them.