I get it just fine, dismissing him was what left me cold. The Laws of Inheritance that is his legacy remains valid. What we know based on Mendelian genetics is no different then what he found:
“Gärtner, by the results of these transformation experiments, was led to oppose the opinion of those naturalists who dispute the stability of plant species and believe in a continuous evolution of vegetation. He perceives in the complete transformation of one species into another an indubitable proof that species are fixed with limits beyond which they cannot change.” (G. Mendel)
I've seen a Biology Professor, an MIT scientist and a number of professional scientists and academics make the same basic mistake. Saying things about creationists isn't a positive argument. What has always puzzled me is why you guys even care about creationism. If it's so weak as an evidential argument, I would think a quick dismissal is all it would take. We don't get theologians on here, Pastors, we actually don't get that many creationists anymore. If it's that cut and dried, why bother? Disagreement I get, but the seething contempt has always puzzled me.