Genetics and a historical Adam and Eve

Several Christian supporters of Darwinism, e.g. Denis Alexander, state with great confidence that genetics proves Darwinism. Others go further and state that it rules out any kind of historic Adam and Eve (even the kind that Alexander prefers, which isn't itself compatible with the teachings of Scripture). Usually - and this is said especially for Christians trying to address other Christians - this is stated without any examination of contrary evidence. Many Christian Darwinists seem to have adopted the campaigning tactics of the new atheists: state your conclusions with great confidence and bombast, skip the critical step of careful and responsible presentation of counter-arguments, and simply employ scoffing and scorn to dismiss any objection. Do this in the name of science, and claim that nobody sane disagrees with you. This approach intimidates many people into piping down or following suit (lest they become objects of scorn too), but this is not the way that servants of truth should behave.

Here is one good article giving some of the other side of the case: The Non-Mythical Adam and Eve! - Refuting errors by Francis Collins and BioLogos.