Dredge writes:
You can't demonstrate that life on earth is the result of a contiguous process of biological evolution.
We can.
29+ Evidences for Macroevolution: The Scientific Case for Common Descent
You can't demonstrate that any alleged evolutionary sequence of fossils is linked ancestrally.
No, we can't. What we can do is demonstrate how the mixture of features in fossils exactly matches the predictions made by the theory of evolution. For example, we see fossils with a mixture of modern human and shared ape features. We see fossils with a mixture of dinosaur and bird features. We don't see fossils with a mixture of mammal and bird features. This is massive evidence for the theory of evolution.
You can't demonstrate that known evolutionary mechanisms produced the history of life on earth.
Yes, we can. I do that very thing here:
https://www.evcforum.net/dm.php?control=msg&t=20367
And again, more evidence:
29+ Evidences for Macroevolution: The Scientific Case for Common Descent
You can't demonstrate how any alleged evolutionary change evident in the fossil record took place.
Yes, we can. The nested hierarchial pattern demonstrates that these changes took place through mutation, selection, and common ancestry.