As I have said in other threads on this subject, to a Creationist there is no amount of evidence that would ever suffice to sway a Creationist into believing Evolution. From what I see, the extreme wayward branches of Christianity that are trying to push Creationism into the public domain exhibit a level of zealotry and gullibility that is not much different than the Koran Thumping Mullahs that have plunged the Middle East into a Dark Age of terrorism, anguish and death. God gave Man a brain to think, reason and learn. A Creationist just wants to sit on his brain and refer to the bible in all matters of science and life’s mysteries.
That's a pleasant way of admitting that there is no evidence of the first required step in the entire Evolutionary process.
When one has no ethics and no evidence, simply state that no evidence would ever convince "non-believers."