Living out here in the "heartland", lemme tell you, I see letters to the editor saying this shit all the time. The "Atheists leave, this is a *Christian* nation" followed by "The ACLU is discriminating against us by trying to keep the ten commandments out of our schools." You'd think that level of irony would actually burn. Yet, it does not. That right there is a good argument against the existence of $DEITY$.
Oh, another one, that's actually a bit profound:
Finally, why arguing with a fundie about science is ultimately a complete waste of time: