I live in a bubble pretty much empty of evolution deniers, so I haven’t had the chance to try this. But I am genuinely interested to hear someone nicely take one, say Ben Carson, through some questions that would explain what they actually believe.
Do you believe DNA controls how an organism develops from a fertilized egg?
Do you believe there is cosmic radiation?
Do you believe it (or anything) could change DNA and therefore that an organism would grow up a little different from its parents, siblings, and the other critters in the pack?
Do you believe such a difference could ever make it more likely to reproduce successfully than the other critters of its kind?
It seems to me that to deny evolution, you have to get off the foregoing train somewhere before the end, but where?