... Literally the only "argument" is a general, arm-waving assertion that design can account for genetic similarities.OK. Common descent and design can both account for genetic similarities. Yet only design accounts for genetic similarities and the source of the information embedded in DNA.Sure it could, but so can common descent.
... no one wants to discuss it. Oh well.
--Stultis
How? In analyzing the DNA of living creatures, "the source of the information embedded in DNA" is always the same, whether you're a creationist or an evolutionist. That information is copied from previous copies.