It's fustrating to argue this subject. I think the method you use there is the best though - pointing out that evolution no more contradicts the 2nd law than life processes do.
I've been asking all day, but not one of the 2nd Law wizards has even attempted to explain how evolution is different from observable life processes.
I'm particularly interested in learning, which I think butts up against the information theory argument. If learning doesn't violate the Second Law, then evolution doesn't. The processes are commensurate.