"Humans are still apes" is un-Darwinian.

Darwin is saying that all animals are linked by genealogical ties. The mouse and the elephant share a common ancestor, a small, shrew-like creature, 200million years ago. So is he saying elephants are still mice, just big mice with a funny nose? No, the theory, as the book title suggests, is a theory of origins. Given 10million years descent with modification can come up with something genuinely new. By spreading the necessary changes across millions of generations, descent with modification can even produce genuine novelty without needing a mouse to give birth to an elephant.

Some people look at modern technological civilization and see it as evidence that humans are not apes, but are their own kind of thing, genuinely new. Darwinians accept that sufficient such evidence can prove the point that humans (or maybe post-humans) are not apes, because it is central to Darwin's theory that some kinds of genuine novelty arise despite (and indeed through) long chains of descent.