How many Atheist are also vote Republican from time to time?

[Cephus]

True, but the one thing that conservatism has nothing to do with is religion, but that's the one thing that everyone seems to think characterizes American conservatism. They're just wrong.

Conservatism has a lot to do with religion because it entails preserving your culture, and your culture is inevitably influenced by religion - Even if you're against religion, you're probably very influenced by the predominant one and its ideas. It is inevitable. Laws are based on morality, usually the majority's morality - Morality itself is influenced by religion even if most "devout" atheists don't want to admit it - This isn't to say you need to be religious to be a conservative, but to say conservatism isn't influenced by religion is naive - It has something to do with religion because it promotes tribalism and a continuum of moral values. IMO, anti-theism and conservatism are fundamentally incompatible.

Not necessarily.  Conservatism isn't clinging to any tradition, just because it is a tradition, it is picking and choosing what new ideas to adopt and what new ideas to reject, based on a rational evaluation of those ideas.  It isn't changing, simply for the sake of change.  Clearly, when 20% of atheists are conservative, those people are not utilizing religion in their evaluation of ideas.  When we have something that demonstrably works and the new idea has not been shown to do so, we won't change until you can prove it's an improvement.

By your thinking, everything is religious because religion pervades the lives of the majority of citizens worldwide, regardless of political lean.