The attacks can indeed be biting; can't say I really blame them for the intensity of their defensiveness. I would offer the following, however.
A Darwinist, like a Creationist, or Buddaist, or Hindu, or Red Chinese Communist Party Politboro member ... they all have in common a hard-wired need for 'God' (their hot denials notwithstanding). A Darwinist is especially vocifierous b/c of the limits of their experience.
But I have met several highly trained scientists who are also ardent Christians (and I haven't met a single Christian who utterly rejects outright ALL science) ... and for these Christians, an extra dimension of experience is theirs from which they draw knowledge ... and security. Not so for a Darwinist who KNOWS that to acknowledge a creator is to essentially kill an identity within himself. And thus, out of all faiths, fundamentalist Christianity is the greatest perceived threat to their survival. To them, it really is all about survival, spiritual survival.
Why submit to a 'Jealous God' who seems to endlessly limit the whims of appetite, when their experience base reveals that pleasure is obtained through pursuing the pulses of appetite (primarily the hunger for the lime light in scientific conferences/journals) - and the imitation spiritual experiences embedded therein?
If imitation is the best there is, by gum, its the REAL DEAL ... so how DARE Christians attempt to point the way to a more 'authentic' way of life?
That all said, I wouldn't 'get used to it'. The very fact so many of them bother to attempt to engage so many of us, even on so negative terms, is a very good sign. We're to heed them as they arise...and witness to the extent we can. Ridicule is a far better indicator of what we're about than indifference.
I engage you because I care about conservatism, and I'd hate to reliquish it to biblical literalists, because I feel that would result in it becoming a perpetually shrunken political movement.