So, according to the list publisher, the imperfection and mortality of the product proves the non-existence of the designer. So a ship with a tendency to list in some situations proves the non-existence of the ship builder. Got it. Man, you guys are a bunch of geniuses. No wonder normal people have a hard time comprehending.
You keep jumping to that conclusion, but there is no way to prove the non-existence of an omniscient designer.
It is, however, possible to show that living things have the characteristics you would expect if they were the result of a series of slight modifications. Including some very odd features that make little sense except as the result of common descent.