Is Theistic Evolution Tenable?
I can only presume what is meant by the topic question of this thread. Since I came at such a late stage, I could not follow because of the various topics, arguments, etc... I looked at the profile of the gentleman that started this topic and it really didn't say anything about his beliefs but some of his posts suggests he is a believer. So, the following paragraphs are some of my thoughts on the general topic of Genesis 1-3.
Darwin's theory of evolution of species by natural selection can't be compared to the life's formation found in Genesis. The reason is because the universe; including earth's first stages of formation, did not include the evolution of animal life forms. Genesis excludes animal life forms by stating animal life, of any capacity, was created after earths formation.
It is by no stretch of the imagination that God can instill evolution in animal life forms, if that is the case. Also, again, at no stretch of the imagination, all lower specie animals were created by God before He created mankind and mankind is still here as lower specie animals have come and gone through all of the ages.
Your question about Darwin's theory seems to pose a concept that eliminates certain facts in order to jump into the middle of something that already exists and create a notion that something exists outside of all things pre-existing, and thus stands independent of all other facts that went before it. In other words, it's like jumping to the middle of 1000 page book and critiquing some event that happened in the middle of the story without acknowledging all events that occurred and is responsible for all that led to the event being critiqued.
The big bang theory, the black hole theory, Einstein's general and specific relative theories, and earth's evolution are all clues as to the truth of Genesis 1-3. In other words, in science, evidence is called theories but all form an opinion that somehow prove the Genesis account to be true. Genesis 1-3 does not lack.