I wouldn't be so absolute about that. Remember that there is a sentence in the Constitution barring any religious test for (federal) public office. There are some atheists who are capable of abiding by the Constitution, but certainly not Stark.
I could not hold office in a government that was founded upon the view that the state was absolute and denied the existence of God. I could not take the oath of office in which I would swear to support those views and laws. That is one reason that Christians did not serve in political office or the military before Constantine. I was making the assumption that an Atheist would find it contradictory to support and to promote the view that rights originated from God alone, and not from the state. Stark my see himself as an Ubermensch not bound by convention or conscience. I would hope that even Atheists would cherish honesty.