ID is theology. A scientist would never write:
"...the existence of even one intelligently designed feature in living things (at least prior to human beings) would overturn the Darwinian theory of evolution that currently dominates Western biology."
Someone with a scientific mindset would [correctly] write something along these lines:
"...the existence of even one intelligently designed feature in living things (at least prior to human beings) would raise intriguing questions about certain aspects of the Darwinian theory of evolution that currently dominates Western biology."
Is there any scientific or mathematical way to prove that something was designed, as opposed to just coming about by chance?