DNA Proves Existence of a Designer

[Everena]

It is his understanding of molecular chemistry. He is saying no scientist understands how macroevolution could possibly ever happen. 

That's your understanding of what he is saying, and there appear to be plausible alternatives to that interpretation.  If you have him actually making statements to the effect that macroevolution is not chemically possible, unambiguously, then please present them.  It is no mystery how chemistry and physics supports the possibility of mutations and gene duplication, so his difficulty with macroevolution would have to lie elsewhere, which would take it out of his area of expertise.

You have your interpretation, but I trust your interpretations about as far as I can throw an Asian water buffalo.

Trust biologists only then. Watch and see what the future holds.