You meant "common descent" and not "evolution", no? Because I could agree that the arguments of common descentists are as insane as the flat-earthers (and probably why flat-earthers, in general, believe in common descent) due to the same mindset.I have to hand it to people who have been arguing with Dave for so long.. I don't know where you find the patience.
One could make a solid case for almost anything using his tactics. Chickens grow on trees. Chickens look like fruit, taste like fruit. They are not animals- you never see one walking around. Anybody who says they do is part of a conspiracy or have been fooled. Videos showing chickens chickens hatching from eggs are faked by the agriculture department.
You are getting bogged down in unimportant details - the earth is not flat no matter how the Mississippi flows. It's like those endless discussions of the mechanism of evolution. It is a distraction from the basic point that evolution happens- irrespective of whether we understand how or don't understand.
But you see, arguing against flat-earthers is good exercise for understanding the arguments of common descentists.
You know... I'm thinking maybe you don't have the patience to argue with Dave because it feels like the blind leading the blind to you. It's an interesting hypothesis anyway.