The best explanation I know about transhumanism, and the poverty of Antigone’s appeal to the ‘unwritten laws of the gods’, is the novel Golem xiv by great Stanislaw Lem. The frame of reference is Princeton molecular biologist Lee Silver’s marvellous book “Challenging Nature”.
All the laws are created by humans, and the famous lecture delivered by Heidegger on the “Ode on Man” of the greek tragedy, was just a restatement of the concept of ὕβρις, clearly backward. Even the Greeks, one of humankind miracles (to quote B. Russell HWP) had this superstition, let alone inferior metaphysics, trapped in pseudoconcepts like sin.
Stanislaw Lem was making reference to MIT mathematician Norbert Wiener book God and Golem although his pitch is very different. This video is a very enjoyable recap of Lem’s novel. The music of Cliff Martinez (of Soderbergh’s Solaris fame) makes for a special listening.