It is stimulating to engage in a meaningful, intellectual discourse, but what you've tried to do is dismiss Atheists with an insult to our intelligence and to our deeply held and seriously considered philosophy.
Let's use your same logic, and just replace "atheist" with other cultural or ethnic groups, and see if it flies:
Joey, I hope you can see that these grossly offensive statements have just as much validity as your assertions about Atheists. Do these statements make it clear why your argument is bankrupt and immoral?
"The sheer volume of Christian blogs testifies to the uncertainty of their belief in God, which they refuse to acknowedge due to mulish pride."
"The sheer volume of African American blogs, trying to claim equality to whites, testifies to their inferiority to whites, which they refuse to acknowledge due to mulish pride."
"The sheer volume of Jewish blogs testifies to the existence of Jesus, whom they refuse to acknowledge due to mulish pride."
(Thanks to Sisyphus Fragment for finding this one.)