:) As I said Sydni most people run with the herd, it is too much effort too think outside their box, so why should atheists be any different? Certainly even you must have come up against libertarian atheists who cannot accept that humans can have an adverse impact on the environment.
You maybe right though, it is nearly impossible to overcome those with closed minds. I've found it much easier to talk with moderate Pro-Choicers who are at least willing to go beyond street corner mantras.