I'm no expert in biology, even less in evolutionary biology. But it amuses me greatly, that "intelligent design" advocates think they know better than leading figures in the field.
I'm no expert, so I can't claim, nor try, to prove to them evolution is a fact. All I can do is point them to what I've found to be easy to digest sources. But these people, who clearly are less knowledgeable than me, somehow think they can "debunk" the experts. As proof they can do so, they refuse to even consider reading whatever I'd point them to.
I find it hilarious really, but it's probably also a big waste of time to interact with them further.