I know of very few Christians who are "allergic" to science. I know I number (and count myself among them) who react to the straw man arguments that assume if you are a Christian you must be opposed to science. Science, and scientists for that matter, who remain objective and go where the evidence leads them are fine. Even those who ascribe to a different worldview are fine if they acknowledge the underlying problems with their assumptions. For instance, if a scientist says "I believe" that geologic dating is correct, but acknowledge there are issues that prevent it from being conclusive I know they're honest and their belief's are honestly arrived at. It is science that has been corrupted to serve an agenda that troubles me, whether evolution, human caused global warming, or holes in the ozone layer. You are absolutely right...science cannot disprove the existence of God, but it doesn't prevent some scientists from trying. Judging from some posts, they've succeeded with a number of folks. The very fact that Christians continue to believe in God is seen as evidence that they don't accept science, hence your statement "Christians are allergic..." Not even "some Christians," which I could at least have acknowledged.
Also I sometimes get frustrated by the leaps of logic that people will make. At least Christians acknowledge an element of faith. All human knowledge is fallible.
"But the same processes which have given us modern science apply to both medical and geological/natural sciences...so why accept one and reject the other, it only smacks of hypocrisy. " Science hasn't been a straight-line march to truth...it is replete with blind alley's, and wrong-headed notions. For anyone who "believes" in medical science should sign a waiver promising not to sue if a new wonder drug of science has some drastic health impact 20 years down the road. And anyone who "believes" in any other aspect of science should always be prepared for a new revelation that turns their beliefs on their heads. And for all the people who assume intellectual superiority because of a "belief" in science should recognize that it is always wise to maintain a degree of skepticism towards any science that refuses to acknowledge its limitations or refuses to discount its own biases. That skepticism represents the "open mind" that Christians are so often accused of not having.
The charge of hypocrisy is misused. Everyone decides where to put their faith. Some put there faith in the perishable and fallible (science). Some put there faith in the imperishable and infallible (God). The science faithful acts like science is infallible and true, but should know better and acknowledge science gets it wrong sometimes and they merely have faith that continued revelation will eventually prove their worldview correct. Christians believe their worldview is based on something infallible and true, but are required to seek continuing revelation to better understand that truth. They also have faith that in the fullness of time their worldview will prove correct. Both are faith-based. Christians see the science-faithed as spiritually blind, and the science faithed see Christians as intellectually stupid.
Christianity and science should have this in common...the search for truth. Neither faith should accept current science as the final word on any subject because man's knowledge is limited.