Difference is between falling systems and Mutations of Genome.Science has now quantitated that a genetic mutation of as little as 1 billionth (0.0000001%) of an animal's genome is relentlessly fatal.The genetic difference between human and his nearest relative, the chimpanzee, is at least 1.6% Calculated out that is a gap of at least 48 million nucleotide differences that must be bridged by random changes. And a random change of only 3 nucleotides is fatal to an animal. Geneticist Barney Maddox, 1992 )
That would keep me from being an evo but, near as I can tell, evos are pretty much immune to logic. You need to try to frame arguments like that in language simple enough for their little minds to grasp. The way Alexander Mebane put it was to compare the situation to that of the coyote who comes to the 2000' straight drop of the Grand Canyon and decides to make it across the 20 mile gap to the other side in 3' steps. Maybe if you can get evos to watch RoadRunner cartoons long enough it will sink in...